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Trek Marlin Gen 3 review: Good bones

Solid fundamentals and outstanding geometry for XC newcomers, but also some inherent upgrade limitations.

When it comes to cross-country mountain bikes, the lion’s share of the attention is devoted to the high-end, short-travel, full-suspension machines like the Specialized Epic 8 , Trek Supercaliber , and Cannondale Scalpel . That’s perhaps as it should be for seasoned racers and/or buyers with deep pockets, but for newcomers coming from other cycling disciplines, kids, and the generally MTB-curious who will ultimately fuel the continuing survival (perhaps even growth?) of the segment, the aluminum hardtail is still where it’s at – and Trek’s third-generation Marlin line comes across as one of the better options out there.

The short of it: Trek’s entry-level aluminum hardtail mountain bike. Good stuff:  Fantastic frame geometry, excellent shifting, good tires, looks great, generous tire clearance, easy-to-live-with semi-internal routing, sort of a rear thru-axle. Bad stuff:  Mega-heavy fork with minimal adjustability, tubeless costs extra, limited upgrade potential.

Looking at what goes into Trek’s latest-generation Marlin, there’s not a whole lot that leaps off the page, which perhaps shouldn’t be entirely surprising given most buyers at this price point will probably be making their decisions based on spec and aesthetics. In that sense, the Marlin is exactly what you’d expect.

The frame is a TIG-welded aluminum affair with chunky weld beads that do without the additional hand-sanding that can sometimes go with a higher-end alloy chassis. The layout is low-slung with a highly sloping top tube that offers heaps of standover clearance, and straight-gauge tubing is featured throughout.

The hydroformed shaping on those tubes is much more dramatic than the outgoing Gen 2 Marlin. The top tube is squished down almost flat to help soften the ride of the front end while the down tube sports a rounded trapezoidal cross-section to minimize twist under load; both are notably flared where they meet the straight 1 1/8” integrated head tube to increase front-end strength. 

The seatstays are subtly flattened – presumably for the same reason as the top tube – and while the seat tube is basically round, it’s slightly curved to leave a bit more space for the rear tire with a welded-on gusset for the extension up top. Pretty standard stuff all around, so far.

The chainstays are where things get really interesting. They feature a bridgeless design to prevent mud build-up, and the S-bend at the bottom bracket is much more complex than before. Trek has also dropped both sides a bit as compared to the previous Marlin, and the changes help boost claimed tire clearance to a more useful 2.4” (up from 2.2”). 

Further back, the previous Marlin’s open quick-release dropouts have finally gone away in favor of a hybrid setup that Trek calls ThruSkew. Make no mistake: the hub dimensions are the same as before. But whereas the old Marlin uses the common quick-release skewer, the new one gets a thru-bolt arrangement that Trek claims is more secure than an open dropout while still saving production costs as compared to the oversized thru-axles found on more expensive bikes. 

Far and away the biggest improvement lies somewhat beneath the surface with vastly more modern and progressive frame geometry. Compared to the Gen 2, head tubes are dramatically slacker across the board – by almost 3°, in fact – the seat tube angles are more subtly steeper by about a degree, reach dimensions have grown by a 15-54 mm (depending on size), and bottom bracket heights have dropped a few millimeters.

Taken together, the changes are intended to place the rider is a more central position between the wheels, and they also push the front wheel further out in front for more confidence on steeper and/or more slippery terrain, similar to trends we’ve seen more generally elsewhere in the mountain bike space over the past several years. 

Impressively, Trek continues to offer the Marlin in seven frame sizes that are designed to accommodate a huge range of rider heights from 1.35 to 2.03 m (4’ 5” to 6’ 8”), with all but the two smallest sizes built around 29”-diameter wheels.

Other features include a conventional English-threaded bottom bracket shell, partially internal cable routing, and a big molded rubber guard for the driveside chainstay to keep things quiet and clean. There’s even a fair bit of versatility baked into the Marlin frame with mounts for a rear rack and kickstand, and there’s also an extra port in the down tube for a dropper seatpost should you decide to add one later. 

Trek says a raw medium Marlin frame tips the scales at about 1,800 g, plus another 100-150 g for paint. 

Trek offers the Marlin in four build kits, and for this review I went with a middle child to stick below that critical US$1,000 / AU$1,500 / £775 / €850 price point. In early April, Trek added new build options of the Marlin 7 (with a dropper post), 6, and 5, while still offering the pre-existing ones, which are themselves still current model year. It’s somewhat confusing, not least to dealers, but for clarity my test bike was the dropper-less Marlin 7 build kit.

For that fairly modest sum, Trek outfits the Marlin frame with a 100 mm-travel RockShox Judy suspension fork, a 1×10 Shimano Deore transmission with an FSA Alpha Drive aluminum crank, 23 mm-wide Bontrager Kovee tubeless-compatible aluminum wheels rolling on sealed cartridge bearing hubs and wrapped with 2.4”-wide Bontrager XT3 Comp tires, and Shimano MT200 hydraulic disc brakes with 180 mm-diameter front and 160 mm rear Shimano RT26 rotors. Finishing kit is pretty basic aluminum stuff all around, capped with a Bontrager Arvada saddle and Bontrager XR Trail Comp lock-on grips. 

It’s no lightweight in stock form at 14.12 kg (31.13 lb), but that’s pretty much par for the course.

Gone fishing

While there are definitely bikes that continue to push the envelope of just how long, low, and slack you can go, Trek has found a nice sweet spot with the Marlin and there’s a very good reason why this sort of thing has become so popular: it works. I’ve come to prefer this style of geometry on my personal bikes – both longer- and shorter-travel ones – because of how they provide more flexibility in where I put my weight in different situations and the added stability at higher speeds. But what really matters in the context of the Marlin is how that layout makes for a more forgiving setup than XC geometries of yesteryear.

If you chuck the Marlin into a corner that doesn’t have quite as much grip as you expected, the front end is more apt to just push a little – otherwise known as understeer – instead of immediately and unceremoniously dumping you onto the dirt. On steep descents, the Marlin allows you to stay centered over the bike instead of awkwardly shifting your weight rearward to keep you from feeling like you’re about to go over the bars. And yet on steeper climbs, the front end isn’t so long that you need to work to keep the wheel from lifting off the ground with each pedal stroke. 

In other words, the Marlin’s geometry leaves more room for error as you continue to learn how knobby tires work on dirt, but also more space to grow your skills without constantly having to pick yourself off the ground and wonder what went wrong. Put in simpler terms, the Marlin’s modern frame geometry also just makes it fun and confidence-inspiring to ride.

The Marlin frame is pretty good in the more traditional metrics, too.

It pedals about as you’d expect for a hardtail (at least compared to lower-end full-suspension bikes), with pleasant levels of snappiness and feedback when you get on the gas and impressively good frame stiffness. I was expecting a backboard-stiff ride quality given the straightforward aluminum hardtail frame and thick-walled, 31.6 mm-diameter seatpost, but even that was a pleasant surprise. The Marlin is still a hardtail, of course, but even with those 2.4”-wide tires inflated a smidgeon more than usual to keep from pinch-flatting on all the sharp rocks I have around here, it’s actually reasonably smooth over rough stuff. 

Bonus points to Trek for not following the lead of lower-end road bikes by routing the control lines through the upper headset bearing for absolutely no good reason whatsoever ( aside from misguided vanity ). The ports on the side of the down tube are clean-looking and effective, and although the foam tubing installed at the factory still allowed a bit of internal rattling on particularly bumpy sections of trail, it’s overall a very clean setup that won’t rub the paint off of the frame over time, either.

Build kit breakdown

It’s pretty easy for a product manager to do a good job on spec when the bike is an ultra-premium model with a five-figure price tag, but that task is far more challenging when you’re watching every last penny. Trek has gotten a lot of things right on the Marlin 7 Gen 3, but also left a fair bit of room for improvement.

Let’s touch on the high points first.

Trek likely saved a bit of cash in the drivetrain by speccing an FSA Alpha Drive crankset and KMC X10 chain instead of a 100% matched setup, but the Shimano Deore bits are there where it matters most and serve as a potent reminder that at this end of the market, Shimano absolutely obliterates the performance of its rivals. Individual shifts under normal pedaling efforts on the Marlin 7 were as smooth as could be, and even multiple shifts under harder efforts were consistently reliable. The whole setup was pleasantly quiet and feels impressively premium, too, and bonus points to Shimano for making the Deore pulley cage clutch a user-serviceable item. If there’s a better option than this at this price point, I’m all ears.

The Shimano MT200 hydraulic disc brakes are more ho-hum. The levers are weirdly long (probably because newer riders are more comfortable using two fingers instead of just one), but the lever action is light and snappy with a clearly defined engagement point and user-friendly mineral oil-based system. Pad clearance is fairly generous and it’s easy to set the calipers to run rub-free. MT200s aren’t exactly renowned for their power what with their two-piston format and fairly small pads, but the 180 mm-diameter front rotor helps boost the overall performance to more reasonable levels – a good thing since the RT26 rotors aren’t approved for use with metallic pad compounds. Overall, these aren’t going to blow anyone’s socks off, but they get the job done.

I usually don’t expect much for base-level mountain bike tires, but the Bontrager XT3’s tread design genuinely surprised me. The well-reinforced shoulder knobs and moderately squared-off profile offered grip through loose corners, with just enough intermediate tread for a smooth transition between being upright and leaned over. The center tread also sports a ramped leading edge and spacing that’s close enough that it doesn’t feel like you’re dragging an anchor behind you, but yet with enough open area to dig into softer dirt when available. They’ve even been wearing decently well, which is a good thing considering tires aren’t exactly cheap these days.

The Bontrager finishing kit was quite nice in general, actually. The Arvada saddle’s flat profile and firm padding offer good support, while the deep central channel keeps pressure off of your sensitive bits. The lock-on grips sport plastic, not metal, collars but still clamp tight and offer a secure hold with tacky rubber and a ribbed pattern that’s easy on the hands, and the aluminum riser bar is usefully wide at 750 mm. Heck, Trek even does size-specific widths here, with small bikes getting a 720 mm-wide bar and XS bikes getting a 690 mm one. 

As for the stem and seatpost, they’re nothing special. I do appreciate that the former is compatible with Bontrager’s handy Blendr system of accessory mounts, while the two-bolt head on the latter is definitely easier to adjust and more reliable than just about any single-bolt system out there.

The list of not-so-great stuff isn’t necessarily longer, but it unfortunately includes some major drawbacks.

The RockShox Judy suspension fork is about as basic as it gets, with a steel coil spring on one side and a non-adjustable damper on the other. Spring preload can be increased via a handy crown-mounted knob, but spring rate is fixed – and unfortunately, too stiff for my 73 kg (160 lb) body weight. Although it should be straightforward to swap to a softer spring, RockShox doesn’t offer any alternatives.

New riders might find the handy crown-mounted lockout knob to be a plus, but not when it comes at the expense of adjustable rebound damping as I’d take the latter over the former any day of the week. Coupled with that overly firm spring, I found the rebound to be too fast for my liking, and the fork did only a marginal job of keeping the front wheel planted on the ground when things got even remotely tricky. 

The wheels could stand some improvement for sure. The 23 mm inner rim width is on the narrow side – I run wider rims on my gravel bike – and although both the tires and rims are tubeless-compatible, Trek doesn’t use tubeless tape on the rims so that’s an additional conversion cost on top of the valve stems and sealant you already have to buy extra. Build quality was disappointing, too, with insufficient spoke tension on the rear wheel and enough popping and pinging to tell me neither wheel was properly de-stressed at the factory, none of which bodes well for long-term durability. And that external-cam front quick-release skewer? Have we learned nothing, bike industry? Mine came loose on the first ride and definitely needed an unusually high amount of lever force to keep it from happening again.

Another ding against the fork and wheels is their weight, as all three of them are seriously hefty items. RockShox doesn’t even bother to list an official weight for the Judy, but I can tell you its steel stanchions (and steel steerer!) push the actual weight of my test sample to just shy of 2.4 kg (5.29 lb). The wheels aren’t quite as egregious at around 2,300 g per pair, but the stock tires don’t exactly help matters at over 1 kg each. 

Upgrade conundrum

One thing that should be considered for bikes at this price point is the potential for upgrades. Oftentimes, these bikes are purchased as a stepping stone in hopes of becoming more proficient at the sport, and it’d be nice if the bike could grow with your skills to some degree. In that sense, the Marlin 7 is … interesting.

Tires should always be the first items on that list as they have the biggest effect on how a bike – any bike – performs. You can thankfully get decent replacements for under US$100 per pair, and given how heavy the stock rubber is on the Marlin, you can also lop off hundreds of grams of rotating weight in the process. So skid away with those stock tires, my friends, skid away.

Another obvious addition is a dropper seatpost, which Trek facilitates with that spare internal routing port. The PNW Components Rainier is widely regarded as working well and reliable, and it’s less than US$200. Given how heavy the Marlin is already, why add weight with the dropper, you ask? Simple: control. Given the choice between a hardtail with a dropper and a full-suspension bike without one, I’d choose the former every time – and I don’t think I’m in the minority.

On the surface, upgrading the wheels and/or fork isn’t as straightforward since Trek has unfortunately limited your options with the quick-release hubs and straight 1 1/8” steerer, as even mid-range components have moved on from those antiquated standards long ago. That said, Hunt (and likely others) still offers good aluminum wheels with quick-release hubs for a few hundred bucks, and there’s heaps of potential in the used market since parts with those outdated fitments can be had for a song – sometimes even at local community bike shops where there’s a good chance someone has donated parts that can be purchased for next to nothing. 

“On the front of the bike, thru axle costs are not only higher with hubs and axles, but also the forks themselves,” explained Trek mountain bike product manager Chris Drewes. “These costs trickle down to headset cost, and frame manufacturing costs as well. Rear quick-release saves cost in many ways. When you add in the cost of thru axles for frame manufacturing and thru-axle compatible hubs, there is a significant cost difference. That being said there are quite a few wheel manufacturers that offer endcap swaps with their higher-end wheels. Upgrading the Marlin, we see a lot of riders doing drivetrain/dropper post/cockpit upgrades rather than the bigger items like a fork or wheels.”

Would I have preferred that Trek gone with modern thru-axles and a tapered steerer? No question. But the reality is both are still the norm at this price range throughout the industry, and for a bike like the Marlin, I’m not sure I’d consider either a total deal breaker.

Sizing up some of the competition

There are a whole bunch of similar bikes at this price range – so many (and with so much international variation) that it’d be impossible for me to compare them all here. That said, it’s worth taking a look at how some of them fare versus the Marlin 7 Gen 3, keeping in mind that this is only a hypothetical look on paper as I haven’t actually ridden any of these other bikes.

First up is the Specialized Rockhopper Comp . Despite the similar frame and fork, it has a major weight advantage of over 1.5 kg, much of which is in the wheels and tires, which would likely make it feel fleeter on its feet than the Marlin. It’s also more XC-oriented in general with a 2° steeper head tube angle and shorter reach for quicker handling, and while those tires are substantially lighter, the faster-rolling tread won’t offer nearly as much grip, either. This is an interesting option if you’re seeking an aluminum hardtail with a longer-term eye on racing, but the Marlin strikes me as the better all-rounder.

Ok, and then there’s the Giant Talon 1 . Giant historically has offered unusually strong spec for the money compared to other mainstream brands, and it’s no different here. Although most of the components are comparable to the Marlin 7, the biggest upgrade here is the house-brand SXC32-2 RL fork. The stanchions are larger in diameter for more precise handling, and along with the steerer, they’re aluminum for dramatically lower weight than what comes on the Marlin. The air spring drops weight even further and adds critical adjustability, and the hydraulic damper also includes adjustable rebound, all of which should make for a far more capable front end that’ll offer more control and speed. 

Like the Rockhopper, the Talon’s frame geometry is on the more traditional side of things with a similarly steep head tube angle and short reach, but that fork alone is a big advantage over both the Marlin and Rockhopper.

Finally, there’s the Canyon Grand Canyon 5 . Consumer-direct outfits like Canyon often blow mainstream offerings out of the water in terms of value, and the Grand Canyon 5 makes a strong case for that here. The frame is still QR front and rear with geometry that isn’t quite as progressive as the Marlin’s, the Suntour fork features steel stanchions and a steel coil spring, and the wheels are similarly basic aluminum units. If the claimed weight is accurate, it’s actually heavier than the Marlin. 

However, you do get a proper Shimano external-bearing crankset and adjustable rebound on the fork, and at a price that undercuts the other three bikes mentioned here by about US$200-250. From a value perspective, this one seems tough to beat.

The final word

There’s a saying about buying a house that often comes to mind when comparing the pros and cons of various bikes: location, location, location. The idea there is that while you might be sucked into a home’s freshly renovated kitchen or additional bedroom, many of those features can be changed over time (albeit often at greater expense, but still). What you can’t change, however, is where the house is located.

What’s that have to do with bikes? In this case, location is analogous to frame geometry. Without question, the Marlin 7 Gen 3 isn’t the clear-cut best bike out there in terms of spec. If you want a more complete package straight out of the gate, there are obviously better options if you know where to look. But if you’re in it for the longer term, the Marlin’s frame geometry is so good that it’s hard to overlook. Despite the heavy fork and wheels, it’s the frame geometry that ultimately makes the Marlin so entertaining and capable – and arguably, the one most amenable to upgrades, quick-release dropouts and all. 

If your budget allows, though, I’d nevertheless strongly recommend saving up a few extra pennies and splurging on the Marlin 8. It costs US$300 more, but if you even think you’re in it for the long haul, you’ll thank me later for the substantial fork upgrades included there and the stock dropper seatpost, both of which will ultimately save you money later on. 

Whichever way you go, if you’ve exclusively been a drop-bar rider for the last few years and are thinking of heading to the dirt, there are plenty of good options available that won’t cripple you financially. Hope to see you out there!

More information can be found at www.trekbikes.com .

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Trek Marlin 4, 5, 6, 7, and 8 Compared: Which One to Choose?

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In this article, I’ll help you navigate the Trek Marlin mountain bike family by comparing the Marlin 4, 5, 6, 7, and 8. You’ll learn about the differences between each model, who they are best suited for, and more. 

KEY TAKEAWAY

Trek Marlin mountain bikes are ideal for beginners and intermediate riders. They are suitable for cross-country-like terrains. They have relatively short fork travel and no rear suspension, so I recommend avoiding too demanding terrains and technical trails. For those, check out Trek Roscoe .

Marlins differ only in components. I believe the Marlin 6 provides the best value for money because it has a modern 10-speed 1X Shimano Deore drivetrain and Tektro hydraulic disc brakes, and it’s priced in the middle of the entire Marlin range.

Plus, I’ll tell you which model gives you the best value for your money to help make your decision easier.

Trek Marlin 4 vs. 5 vs. 6 vs. 7 vs. 8

The following table summarizes the main differences between all Marlins that belong among the Trek hardtail mountain bikes .

Marlin Pros & Cons Summary

I summarized the pros & cons of the Marlin series below.

Marlin Pros

• Affordability
• Availability in multiple sizes and colors
• Compatible with racks, kickstands, etc.
• Partially internal cable routing
• Lifetime warranty

Marlin Cons

• Unsuitable for demanding MTB terrain due to the short fork travel (100mm)
• Relatively heavy
• No full-suspension
• No dropper post (except Trek Marlin 8 Gen 3), Gen 3 models are compatible with dropper posts

Marlin Main Features

Let me now explain the most important features of the Trek Marlin bikes.

Frame and Geometry

All Marlin bikes have the same aluminum cross-country frame , available in many sizes and colors that vary between models.

The XXS-S sizes have a differently shaped top tube , which is curved to increase the clearance between the rider’s crotch and the frame. This allows riders with shorter legs to stand over the bike more comfortably, for example, when stopping.

The frames of Gen 2 Marlins have a standard cross-country geometry , which provides a comfortable riding position and easy pedaling uphill and downhill. It also gives you easy maneuverability and visibility.

On the other hand, it’s not quite suitable for steep descents and challenging terrain – especially without a dropper seatpost.

The Gen 3 Marlins have a trail geometry (wider wheelbase) that provides more stability, especially when riding downhill. This geometry is similar to the Trek Roscoe .

Lastly, it’s worth noting that the bike’s partially internally routed cables improve its overall appearance.

One of the biggest limitations of Marlin bikes is their front fork suspension. These bikes are not primarily designed for challenging terrain but rather for those who want a versatile bike that can handle various surfaces.

All Marlin bikes have a suspension travel of only 100mm, which is capable of absorbing small bumps. However, this is not ideal for riding on rocky trails, especially not for downhill riding.

Therefore, if you want a bike for more challenging terrain, choose one with longer travel (for example, the Trek Roscoe series ).

All Marlin bikes’ forks have suspension lockout. Lock them when riding on smooth surfaces to reduce energy loss when pedaling.

Wheels and Tires

The wheel size varies depending on the frame size. Frames smaller than size S are equipped with 27.5″ wheels, which are more agile and accelerate faster than 29″ wheels. Frames size M and larger have 29-inch wheels, which are more stable and better at maintaining speed.

All models have the same rims (Bontrager Connection, double-wall) except for the highest model, the Marlin 8 , which has Bontrager Kove rims. The former rims are not tubeless-ready, while the latter are.

The same goes for the tires. The highest model already has tubeless Maxxis Ardent tires, while lower models have Bontrager XR2 Comp inner tube tires.

The groupset is one of the main areas where the different models vary, and it’s probably the deciding factor for many people.

They differ primarily in the number of gears . Modern mountain bikes mainly use 1X drivetrains , which are popular due to their simplicity for maintenance and shifting. They are also lighter than 2X or 3X groupsets .

On the other hand, they offer fewer gears, so you may not always find the ideal one for your preferred cadence.

I recommend choosing from the 1X drivetrains available on Marlin 6 and higher models. This way, you won’t have to think too much about shifting and cross-chaining.

Another difference between the Marlin models is their brakes. The entry-level Marlin 4 uses mechanical disc brakes , while higher-end models have Tektro or Shimano hydraulic brakes .

Better brakes provide higher braking power. However, if you mainly ride on flat terrain leisurely, you don’t have to worry about a lack of braking performance.

Quality brakes are especially important if you plan on riding technical descents, so consider your riding style.

To learn more about disc brakes, read my article comparing mechanical and disc brakes .

Marlin frames have mounts for kickstands and racks , so you can easily install these accessories.

You can also use a Blendr stem , which is a mechanism that allows you to easily attach things like lights, speedometers, or bike computers.

The last detail is the lock-on grips that are easier to install and replace than slip-on grips.

So, which bike from the Marlin family is the best?

In my opinion, the Marlin 6 is the best choice because it has a modern 10-speed 1X Shimano Deore drivetrain and Tektro hydraulic disc brakes. Plus, it’s priced in the middle of the entire Marlin range.

Another option to consider is the Marlin 5 , which is similar but has a Shimano Altus 2×8spd drivetrain, is lighter, and more affordable.

On the other hand, I recommend avoiding the Marlin 4 because it uses the outdated 3X drivetrain. The value of the Marlin 8 is also questionable, as you can get mountain bikes with better components in this price range.

Trek Marlin FAQ

Trek Marlin mountain bikes are perfect for people new to mountain biking, recreational riders, and those who use their bikes to commute. Marlins are reasonably priced, versatile, and comfortable. They come in various sizes and colors, so you can always find the best fit. However, they have entry-level components that are unsuitable for challenging terrain because their fork travel is short. Check out Trek X-Caliber and Procaliber families if you want a better XC bike.

Marlin bikes (4 to 8) differ mainly in components like the groupset, front fork, brakes, weight, and price. I recommend reading this entire article for more information and a helpful comparison table.

The geometry is the main difference between Trek Marlin Gen 2 and Gen 3. Gen 3 Marlins have a trail geometry, meaning a wider wheelbase provides better stability. Gen 2 has a standard XC geometry. Marlin Gen 3 bikes are heavier, have wider tires and different wheels, and are available in different colors. They are also more expensive (except for the Marlin 7 Gen 2 vs. Gen 3). Most other components, like the groupset, suspension fork, saddle, grips, etc., are the same.

Marlin mountain bikes are a great choice for those who need an affordable bike. They are versatile, allowing you to ride on surfaces like paved roads with potholes, dirt, forest roads, and easy trails. Plus, they have mounting options that make adding accessories like racks and kickstands easy. The high-volume tires and front suspension provide a comfortable ride, better than what you’d get on a gravel bike , for example.

Marlin mountain bikes come with entry-level components that may limit their performance for serious mountain bikers. The groupsets are not as fast and effective, and the fork travel is limited to only 100mm. These bikes are also relatively heavy and don’t have a carbon frame option or a dropper post.

About The Author

Petr Minarik

10 thoughts on “trek marlin 4, 5, 6, 7, and 8 compared: which one to choose”.

You mentioned you can get mountain bikes with better components for try price of the Marlin 8. Which ones come to mind?

Hi Andrew, Check out the Polygon Syncline C3 , which has a longer suspension travel and carbon frame (yes, it’s currently discounted), or Polygon Siskiu D5 , which is a full suspension MTB. 🙂 I hope it helps. – Petr

The Gen 3 Marlin 8 has a dropper post and many other gen 3 models have the holes to run a dropper.

Hi Brandon, Thanks for noticing that. I’ve updated the info. – Petr

Hi Guys, I am interested in Marlin 8, 3 gen. I live in Columbus, OH, what store location is the best for a test drive? Very Respectfully, Luis

Hi Luis, Please, try using Trek store locator . It should give you a list of retailers near you. I hope it helps. 🙂 – Petr

Hi Peter, I purchased a 2022 marlin 7 and I simply love the bike. I usually ride 40 miles a week basically bike trails it handles very well and the braking system is great I would buy this bike all over again. Best regards John from New Jersey.

Hi John, I am glad to hear that. 🙂 I wish you many more miles ahead. – Petr

This blog about Trek Marlin bikes compared has been a tremendous resource for me. Thank you for the awesome content.

I am glad you like it. Thanks. – Petr

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Trek Marlin Buyer's Guide

Trek Marlin is a trail-worthy mountain bike that's tough enough for off-road adventures and versatile enough to impress dedicated commuters.  Read our guide to understand the ins-and-outs of this MTB, why it might be the best bang for your buck, and the differences between model options.

Trek Marlin Overview Trek Marlin Features Trek Marlin Models

Trek Marlin Overview

Who is a Trek Marlin for?

The Trek Marlin is durable, easy to outfit with gear and accessories, and at home on many types of terrain.  This makes it an ideal mountain bike for beginner cyclists looking for versatility at a good price point.  

Commuters will appreciate the frame mounts for a rear rack, 29" or 27.5" wheels for smooth and efficient pedaling, and 4" of front suspension to take the edge off the ride. 

The Marlin is capable on the mountain too.  It'll gobble up less technical XC trails like the Bonneville Shoreline Trail on the east bench in Ogden.

Why you might love a Trek Marlin

VALUE!  The Marlin is not only a high-quality and versatile mountain bike, it's also super affordable!  It's built with the best component spec per price point that ensures you won't outpace the bike as your cycling skills advance and your adventures get more technical.

Experience the Trek Marlin

Trek Marlin Features

Smart Wheel Sizing

Ride the fastest wheelset that fits. 26" wheels stay alive on the XXS size, while the XS and S frames roll with 27.5" wheels.  Medium thru XXL frames are equipped with the fastest 29" wheels.

Bike Mount Versatility

You'll appreciate the ability to accessorize with an array of features including a direct-mount for kickstands and rack/cargo mounts.  Bike packers and commuters alike can geek out over the mounting options.

The Marlin comes in seven frame sizes (XXS to XXL) to comfortably fit riders of practically  any height! For the smallest sizes, they've included unique fit features like a curved top tube for easier dismounting.

Race-Inspired Geometry

Trek engineered the Marlin to have the look of an XC-racing bike while prioritizing comfort for beginner riders.

Internal Cable Routing

Looks awesome!  No unsightly cables to be seen. Internal cable routing on the Marlin means you don't have to fret about dirt, grime, and inclement weather contaminating your cables.  

Marlin Gen 3 vs Marlin Gen 2

Whereas the Gen 2 Trek Marlins give riders a great balance between trail and street. the Gen 3 Marlins have been tipped towards the trail end of the scale.

• More tire clearance: Gen 2 Marlins have clearance for 2.2" tires while the Gen 3 models can fit 2.4" tires.  
• Internal dropper post cable routing: Gen 3 Marlins come with internal cable routing for dropper posts while Gen 2 bikes don't.  
• New rear ThruAxel: Gen 3 Marlins use a stiffer, more secure rear thru axle skewer.  
• Trail focused geometry: Gen 3 Marlins have a more trail focused geometry that includes a slacker head tube angle, a steeper seat tube angle, and a longer reach than the Gen 2 models.  
• Chain stay guard: All Gen 3 Marlins come with a full length chain stay guard to protectthe frame and keep things quiet on the trail.

Trek Marlin Mountain Bike Models For Sale

There are currently  eight levels of Trek Marlin mountain bikes designed with a wide range of riders in mind. 

Find the one that fits you and your needs below:

Trek Marlin 6 Gen 3

The Gen 3 Trek Marlin 6 kicks off the lineup with a capable, trail-ready MTB that's at home on the dirt or on the pavement.

• Frame : Alpha Silver Aluminum
• Fork : SR Suntour XCT 30 coil spring 100mm
• Drivetrain : Shimano Deore M5120 1x10
• Brakes : Tektro HD-M275 hydraulic disc
• Price:  $899.99

Trek Marlin 7 Gen 3

Upgrades: Better suspension fork and higher end hydraulic disc brakes for improved control on steeper, rougher trails.

• Fork : RockShox Judy coil spring with Turn Key lockout 100mm
• Brakes : Shimano MT200 hydraulic disc
• Price:  $999.99

Trek Marlin 8 Gen 3

Upgrades: A serious trail package that includes an air spring fork, 1x12 speed drivetrain, and a dropper post.

• Frame : Alpha Silver Aluminum,
• Fork : RockShox Judy Silver, Solo Air spring 100mm
• Drivetrain : SRAM SX Eagle 1x12
• Dropper post : TranzX JD-YSP18 
• Price:  $1,399.99

Trek Marlin 4 Gen 2

Marlin 4 is Trek's gateway to XC trail riding. It is the most affordable of the options and is versatile enough to get out and explore or be a daily commuter.

• Fork : SR Suntour XCE 28 100mm
• Drivetrain : Shimano Tourney TY300 3x7
• Brakes : Tektro MD-M280 Mechanical Disc
• Price:  $629.99   $529.99

Trek Marlin 5 Gen 2

Upgrades:  Better 2X shifting, lockout, and hydraulic disc brakes. Marlin 5 improves light trail riding but still doubles as a versatile commuter.

• Fork : SR Suntour XCM 30 100mm
• Drivetrain : Shimano Altus 2x8
• Brakes : Tektro HD-M276 Hydraulic Disc
• Price:   $739.99   $599.99

Trek Marlin 6 Gen 2

Upgrades:  Much improved shifting with a wide-range 1x10 Shimano Deore drivetrain. Nice!!

• Fork : SR Suntour XCT 30 100mm
• Drivetrain : Shimano Deore 1x10
• Price:   $849.99   $749.99

Trek Marlin 7 Gen 2

Upgrades: Rock Shox fork! Bontrager Kovee TLR wheels, and powerful Shimano hydraulic disc brakes. 

• Fork : RockShox Judy with Turnkey lockout 100mm
• Brakes : Shimano MT200 Hydraulic Disc
• Price:  $1,029.99   $899.99

Trek Marlin 8 Gen 2

Upgrades:  Mega-range Sram 1X12 Drivetrain! Tubeless ready Maxxis tires, and a Rock Shox Judy Silver with Solo air spring.   The Marlin 8 approaches a race-worthy XC MTB that's perfect for aspiring new trail riders.

• Frame :  Alpha Silver Aluminum
• Fork :  Rock Shox Judy Silver Solo Air 100mm
• Drivetrain :  Sram SX 1X12
• Brakes :  Shimano MT200 Hydraulic Disc
• Price:   $1,329.99   $1,199.99

Want an even more off road capability? 

Trek makes incredible mountain bike models that don't stop at the Marlin. If you're considering the Marlin but want a little more capability on the trails, you might like some of Trek's other offerings. The Trek X-Caliber is another solid value MTB but is actually an entry level XC race bike, and the Trek Roscoe is their agressive trail hardtail with more travel and bigger tire clearance.

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• Marlin 6 Gen 2

Trek Marlin 6 Gen 2

Marlin 6 is a cross country mountain bike built to give you an efficient off-road ride with a suspension fork that locks out, and a simple 1x drivetrain. It's made for mountain biking, but it's also equipped with features like rack and kickstand mounts that make it a great choice for adventurous daily commutes. It's right for you if... You're testing the waters of off-road riding and want a real mountain bike at a great value with a wide range of gears to cover more ground on the road and trail. The tech you get A lightweight aluminum frame with internal routing to protect your cables and add to the bike's sleek look, powerful hydraulic disc brakes, and a simple 1x10 Shimano drivetrain that ditches the front derailleur for less clutter and easier operation. The wide-range cassette still gives you all the gears you need for big climbs and steep descents. Plus, a suspension fork with a lever that lets you easily lock the suspension so you don't waste energy on smooth terrain. The final word Marlin 6 gives you upgrades you'll notice on every ride, like the smooth, simple shifting Shimano drivetrain. Extra-strong, double-walled rims and powerful hydraulic disc brakes give you durability and stopping power for your most rugged adventures on the trail, in town, and everywhere in between. Why you'll love it - The 1x drivetrain gives you all the gears you need and none you don't - Smaller frame sizes (XXS, XS, and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently - Marlin models in XXS through S frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount - Rack and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Like every model in the Marlin family, it's backed by Trek's lifetime warranty

Will my bike have a curved top tube?

Smaller frames (XS and S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. The larger frames (M and ML) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Due to supply-chain issues, Specs are subject to change without notice.

* Subject to change without notice.

Part Numbers

Review Of Trek Marlin 5: Budget-Friendly MTB for Beginners

T rek Marlin 5 is a phenomenal, trail-ready 29er that costs little and gets the job done on different types of surfaces, including paved and unpaved roads.

Beginner riders are often faced with a tough dilemma — purchase a versatile and comfortable city bike to commute or a real MTB to have fun and embark on off-road adventures.

With Trek Marlin 5 Gen 2 , you can do both. This 29er has the ruggedness of a true trail-blazer but has the ability to double as an everyday workhorse to take on short urban commutes.

One of Marlin 5’s biggest advantages is the low price. This bike costs just $720 , which puts it in the budget category. Still, there’s a lot to be excited about even with such an attractive price.

Trek Marlin 5 Quick Overview

Marlin 5 main features, is trek marlin 5 the right choice for you, verdict: worth the money (or not), trek marlin 5 (2022).

Marlin 5 is characterized by an excellent off-road-ready aluminum frame, cushy front suspension, burly wheels and tires, hydraulic disc brakes and a lot more.

It’s one of the best-valued models from the Marlin series, offering multiple improvements compared to the lower-priced Marlin 4. Some of these are better brakes, better hubs, and a better bottom bracket.

It’s an entry-level bicycle, most suitable for beginner riders who plan to do a little bit of everything and too much of nothing.

• Frame : Alpha Silver Aluminum
• Fork: SR Suntour XCT 30, 100 mm
• Front Derailleur: Shimano Altus M315
• Rear Derailleur: Shimano Altus M310
• Brakes: Tektro hydraulic disc, 160/160mm rotors
• Rims: Bontrager Connection, double-wall
• Tire Size: 27.5″ / 29″ x 2.20″
• Weight: 13.97 kg / 30.81 lbs

See All Specs on Marlin 5 Product Page

If you have a budget of $740 to spend on your next trail bike, Marlin 5 is pretty much the most you can get in this category.

Trek is known for bikes that have good value to money, so this Marlin series model has some worthy components and does not make too many compromises.

Lightweight Alpha Silver Aluminum Frame

Trek Marlin 5 has the same Alpha Silver Aluminum frame seen on all bikes from this lineup. It is characterized by a versatile head tube angle of 69.5 degrees. That’s a good compromise between steep and slack geometry. That means this bike will perform well in most conditions, including climbing, descending, and cornering.

Light, durable, and comfortable Alpha Silver Aluminum frame is Marlin 5’s biggest selling point, seen on other more expensive bikes from Trek’s MTB lineup.

All cables are internally routed which makes them last longer and improves the overall appearance of the bike. Riders can add a rear rack and a rear kickstand, which would make Marlin 5 ready for daily commutes as well.

You can get Marlin 5 in four modern and attractive colors: Lithium Grey, Radioactive Red, Volt to Miami green fade, and Azure. They’re beautiful!

Springy SR Suntour Fork

Marlin 5 is equipped with a low-ranked SR Suntour XCT 30 fork with a coil spring. This fork is quite heavy but beginner riders without too much off-road experience will like it because it provides plenty of comfort.

When it comes to adjustability, just the preload function is available, so you can dial the fork to your liking and ensure a more comfortable ride and better responsiveness.

It’s important to note that the XS frame size comes with 80 mm of travel, whereas all other frame sizes have 100 mm of travel in the fork.

Best Feature: Hydraulic Disc Brakes

The feature that will make all Marlin 5 owners happy is the hydraulic disc brakes . This is the biggest improvement compared to the cheaper Marlin 4 which comes with mechanical disc brakes.

Hydraulic disc brakes present a major increase in stopping power and precision . They require less strength input from your fingers but offer more braking power output.

Trek has gone a step further and equipped the smaller frame sizes with short-reach brake levers to accommodate short riders with smaller hands.

Delicate Shimano Derailleurs

The main points of improvement on Trek Marlin 5 are its derailleurs. Compared to the previous releases, Marlin 5 has Shimano Altus components

Depending on how you take care of them, they might last you for years and miles to come. However, if you’re not careful and you shift under tension or you fall off your bike and smash them, they might give you some headaches.

Still, that’s not something an average rider planning to take Marlin 5 out on weekend adventures and weekday commutes should worry about. Plus, updating to higher-value Altus, Acera, or Alivio groupsets is not a big investment.

Beefy Bontrager Wheels and Tires

Last but not least, the beefy Bontrager wheels and tires are some of the first things you will notice on your Marlin 5. The 13.5″ and 15.5″ sized frames come with 27.5″ wheels, whereas all larger frames come with 29″ wheels.

The wheels are Bontrager Connection. They have 32 spokes, so they are quite strong, and they’re double-walled which means they can withstand some beating.

The Bontrager XR2 tires are 2.20″ wide on 27.5″ wheels. However, when it comes to 29″ wheels, the rear is narrower at 2.0″.

These wheels and tires are a bit heavier than ideal , but once you get them going, they’ll take you wherever you direct the handlebars.

Geometry & Sizing Table

We especially like it because it’s good at more than one thing.

Trek Marlin 5 is not strictly a trail-specific bike that would feel sluggish in all other settings. It’s equally efficient on both paved roads and dirt roads.

However, its wide tires, massive wheels, and capable hydraulic disc brakes still make it more suitable for riders who plan to spend more time in forests and on mountains than on smooth city streets.

Other Marlin Models

• Marlin 4 – MSRP $630 – Has a lightweight aluminum frame, 21 gears, 100 mm of front suspension, and strong mechanical disc brakes.
• Marlin 5 – MSRP $740 – Combines a light aluminum frame, plush SR Suntour suspension, entry-level Shimano drivetrain, and powerful hydraulic disc brakes in a good-looking trail package. Men and women-specific models available.
• Marlin 6 – MSRP $850 – This model is built with an Alpha Silver Aluminum frame, a 1×10 mid-range Shimano drivetrain, burly tires, and comes with 100 mm of front suspension travel with lockout. It’s available in men’s and women’s versions.
• Marlin 7 – MSRP $1,030 – Trek’s race-worthy model with an Alloy frame, superior RockShox front suspension, quality 1×10 drivetrain, Shimano components, and improved Shimano hydraulic disc brakes.

To the right buyer, Trek Marlin 5 is definitely worth the money . This is a lot of bike for just $740, specifically when it comes to the components. The hydraulic disc brakes increase the value of the bike, as well as the high-quality aluminum frame.

However, if you value every cent and you don’t intend to tackle steep hills or ride in wet weather, you can save and get Trek Marlin 4 with mechanical disc brakes and slightly lower-ranked hubs and bottom bracket.

Get Directly From TrekBikes.com

Or see best Trek bikes

• Alpha Silver Aluminum frame
• Powerful hydraulic disc brakes
• Good price-to-value ratio
• Attractive colors

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30 thoughts on “ review of trek marlin 5: budget-friendly mtb for beginners ”.

My wife and I just bought 2 29 inch Lithium Gray Marlin 5 Gen 2 bikes. So far so good other than a flat tire I experienced but that’s not Treks fault by any means. We like the weight and the smooth ride it has.

Trek 5 is my 1st Mountain Bike I have been riding it 3x a week Doing some hard bush trails. It really seems to handle all trails well. No one knows that my bike isnt really expensive . They all say “love your bike ” I just love my bike but will upgrade to a better Trek when I have obtained more skills. Thanks Natalie

Hi Natalie, Well as they say, a Trek is a Trek. The brand itself speaks for itself. It also depends on the kind of ride you do.

lol “my son doesn’t abuse his bike he just broke all of the most easily abused parts of it”

Hi Boknows, Sounds like a future athlete there 😉

Very helpfull!!! , thanks dude!

I am 15 and got my trek Marlin 5 a couple years ago. I have ridden some insane tracks on it and haven’t really had any issues. The only thing I’ve broken so far is the derailer hanger but apart from that nothing. I use it for riding on streets, dirt roads and mountain bike tracks of different difficulties including black diamond tracks. It is still working great and I would think of it as a good bike. I found that the seat post was originally at my good pedaling height when I got it at its lowest point but have now upgraded that to dropper.

Hi Jayden, Have you tried getting a regular maintenance check with your local bike shop? Regular maintenance check can help prolong the life of a bike 😉

I bought a 29″ blue Marlin 5 for my son’s 14th birthday 16 months ago and initially I really liked it. But, it’s been a flaming pile of broken parts since then. My son doesn’t abuse this bike (no downhill or big jumps) and mainly rides a few miles into town and occasional wheelies. Since new here’s the things that have broken on it: rear shifter cable, rear axle, right pedal stripped out of crank arm, left pedal stripped out of crank arm, rear axle again, right pedal stripped out of crank arm again and the chain broke (which pulled the rear rerailer into the spokes and ruined it). Our closest Trek dealer is an hour away so running to the bike store is a real issue but they have been pretty good about helping me out. I’m a metal fabricator and part time motocross bike mechanic so I have a good background in metals and how they should operate. I honestly feel Trek has build a cheap bicycle with metal parts using allows that aren’t appropriate and as thin as materials as possible to save weight at the cost of reliability. I just called Trek directly and we’ll see where that goes.

Hi Dough, Sorry to hear about your experience. It looks like your drivetrain and the whole groupset have issues. Usually these are the most abused parts of the bike and an upgrade to better parts will do better. However I am curious as to what they will tell you. Let me know about it. Cheers!

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Trek Marlin 6 Review: Is This Bike Worth Buying?

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What do you want from your MTB? Is it a bike that you can take to work every day? Something light that you can easily transport if needed, something with multiple speeds that will allow you to commute with ease?

Or are you after an adventure, a bike that you can have fun with? If you live near mountain trails, for example, you might want a bike that can handle a few bumps in the road. In that case, you’ll want something tough with great suspension that can easily deal with tougher terrain.

Bottom Line Up Front: So, we would recommend it overall ( you can pick it up online directly via Trek here ) – particularly if you’re on a tighter budget and you want to upgrade it later on down the line. It’s one of the best out of the box budget buys.  

The Marlin 6 is a GREAT budget pick to get started. An excellent all-around mountain bike, with room for plenty of cusomizations and upgrades later. Only if you need it.

Table of Contents

How does Trek stack up against other companies?

Trek is known as a brand to be trusted. Thanks to years of quality craftsmanship and its long alliance with Lance Armstrong, Trek is considered to be a solid brand in the mountain bike space.

In terms of price, Trek offer a range of different options – from around $450 for the FX (a basic hybrid bike) right up to $12,500 for the Madone SLR 9 Disc brakes eTap suspension lockout (a state-of-the-art racing bike). The Marlin 6 is on the lower end of the price scale.

Trek are quite similar to Diamondback in their price range. Although Trek do offer a lot of expensive bikes (which is to be expected given their expertise), they have more budget options than Fuji and Cannondale.

What kind of bike is the Marlin 6 ?

Trek Marlin 6 is designed to be a multi-purpose real mountain bike: it’s built with mountain biking trails in mind, but it’s also great for commuters, with extra features like rack and fender mounts.

It could be the perfect choice for you if you want to hit the trails at the weekend, but also need a bike to commute to work in the week. It’s not built to go downhill or for heavy trails, however.

It’s also an entry-level bike (for mountain biking) – this means it’s a lot more affordable than some other bikes on the market.

The Main Features of the Marlin 6

Let’s take a look at some of the features of the Marlin 6.

What is the Trek Marlin 6 made from?

The Marlin 6 is made from aluminum, making it a pretty lightweight bike. There are seven sizes to choose from, so you should be able to find one that fits you. It comes in orange or silver.

What are the wheels like?

Depending on which size you buy, the wheels are either 27in or 29in – this is to help the larger bikes to have a smoother ride (with minimal impact to standover height). This is great because the larger wheels allow you to have a better riding experience on slightly rougher terrain. The wheels are heavy, however, which caused some users problems as they tried to pick up speed.

The wheels are Bontrager Connection 32-hole double-walled, and the tires are Bontrager XR2.

What other features does it have?

The Marlin 6 is designed to be able to handle lighter trails and cross country moderate terrain – so you won’t be able to hit the hardcore trails with this one. It does offer multiple gears (24 speeds / shift levers) with a rack and fender mount, however, which makes it ideal for commuting or mixed use riders.

How does the Trek Marlin 6 perform?

Some people found the Marlin 6 to be a little stiff and unresponsive, with the wheels reducing the responsiveness quite drastically at times. This makes it less comfortable to ride on trails, as it doesn’t seem to perform well on drops, with limited softening. However, in terms of riding on smoother, flatter terrain, it seems to perform nicely. A great entry level bike for mountain biking.

Check out how Marlin 6 Compares to Marlin 7.

What are the specs of the Marlin 6?

In terms of specifications, here are the main things you need to know:

• Fork – SR Suntour XCT fork, 100-mm travel fork
• Crankset – Shimano
• Derailleurs – Shimano Altus
• Brakes – Tektro M290 disc brakes (hydraulic disc brakes and brake levers)
• Saddle – Bontrager Evoke 1

What warranty will I receive if I buy it?

Like all Trek bikes, once you register it, you get a lifetime warranty against manufacturing defects.

Trek Marlin 6 is suited for…

• Riders on a tight budget but want a versatile crossover bike
• Those who want to try a bit of trail riding but also need a bike to commute to work/ride on flatter terrains (cross country mountain bike)
• A solid floor of great performance (from great brakes, excellent drivetrain, dropper post, silver aluminum alloy…)

Trek Marlin 6 is not suited for…

• Anyone wanting to tackle tougher trails
• Those that don’t want to upgrade/change parts on their bike to improve the riding experience

What do users think of Trek Marlin 6?

There are a range of views here. Many people find that it works very well on flatter ground, and they enjoy the large wheels and multiple speeds. Quite a few users decided to change the grips and pedals  (for different types of pedaling), which made riding the Marlin 6 a bit more enjoyable.

Generally, it’s considered a good bike for the price, and people say it is a good bike for customization – so if you want a bit of a ‘blank slate’, you can tinker with it to your heart’s content.

On the other hand, people found that braking and sudden turns put stress on the suspension fork legs, making them stick – and that it generally feels like a stiff, not very responsive ride on trails. Small jumps and dips in the trail were quite unforgiving for some people, which is a shame. A few people mentioned that the undampened suspension also made for a less comfortable riding experience on trails.

So, mixed opinions – it could work for you if you want to give trails a go, or if you’re willing to customize it, but it’s mostly suited for commuting (with kickstand and all).

The Pros and Cons of the Trek Marlin 6

Here are the best and worst bits about this particular model:

• Great price point ( see here for latest )
• Very customizable
• Handy for commuting
• Doesn’t ride as well on trails
• Can be a bit stiff and unforgiving

Frequently Asked Questions

Let’s take a look at some of the most commonly asked questions about the Marlin 6.

It weighs around 31.77lbs.

The maximum weight for riders is 300lbs.

People suggest you can ride the Marlin 6 on blue and green level trails with no problems. However, there may be more suitable bikes out there for you if you plan to hit the trails a lot.

Most users don’t recommend it – it can deal with small drops okay, but it isn’t designed for jumps.

Yes – it comes in a variety of sizes, too, so you should be able to find one that suits you.

Yes, there are two choices – orange and silver.

Where can I find Trek bikes?

What are the Best Trek Marlin 6 alternatives?

There are a few alternatives we can recommend if you don’t want the Marlin 6:

Diamondback Overdrive – This is a great bike at a similar price point to the Marlin 6. The wheels have great traction (making it great for trail riding), and it has a comfortable seat. It’s also very easy to assemble out of the box, making it a good choice for beginners.

The classic returns this year with 27.5” wheels, 24 speeds, a plush four-inch Suntour suspension fork, and powerful disc brakes. Big knobby tires grip every root and rock, keeping you confident and in control as you explore the trail. Whether you're a diehard hardtail aficionado or looking for a solid starter mountain bike, the Overdrive doesn't disappoint.

Trek Marlin 5   – This is great for beginner riders and offers similar features to the Marlin 6, including the alpha silver aluminum frame. You can get it for as little as around $500 , which is great if you’re on a tight budget. Again, it’s great if you want a bike that can handle the commute (commuter road riding) as well as some mild-to-moderate mountain bike trails (road and trail).

Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A front suspension fork with 100mm of travel, 21 speeds, and mounts for a rack and kickstand make it an ideal choice for new trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.

Kona Blast – this is a tough bike that comes in at under $1,000 but can handle some tougher trails than the others on this list, thanks to the robust frame sizes (also aluminum frame) and excellent suspension. It can also handle some good jumps, too, so if you want to go on more adventures with your bike, it could be worth the extra money.

Conclusion – is the Trek Marlin 6 worth buying?

The Marlin 6 is going to appeal to a specific type of person. If you’re on a tight budget, you want a bike that can handle mild trails and you want to use it to commute to work, then the Marlin 6 is a great bike for you.

Also, if you’re willing to tinker around with it, you can slowly upgrade it to improve your riding experience over time. This is a great bike if you’re new to the MTB world and you fancy customizing a bike for the first time (as a more novice rider).

However, you do get what you pay for, and in this case, this budget bike doesn’t stack up very well against its more expensive counterparts. It’s not as fun to ride as other bikes we’ve reviewed, especially on rocky, bumpy trails. If you want a hard-wearing bike that you can have an adventure with, the Marlin 6 isn’t going to be for you.

Bottom Line: So, we would recommend it overall ( you can pick it up online directly via Trek here ) – particularly if you’re on a tighter budget and you want to upgrade it later on down the line. It’s one of the best out of the box budget buys.  

If you can afford to spend a few hundred more dollars and you don’t want to bother with customization, we’d recommend investing in a different model that is a bit more comfortable to ride such as the Diamondback Overdrive .

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Bikepacking & Adventure Cycling

Specialized Rockhopper Vs Trek Marlin: Which Is The Best Hardtail?

The budget hardtail bike battle, Specialized vs Trek, two big brands that have been around forever.

Which one is the best bike for you?

In this article, we are going to compare their highest-end quality bikes together alongside their budget and mid-range models. As each brand offers quite a few bike builds for each model.

The Specialized Rockhopper bike is a heavy-hitting yet lightweight bike that boasts exceptional performance and versatility, regardless of the model or size.

This bike continues the Rockhopper’s 30-year tradition of striving for excellence and refusing to settle for anything less than the best. The frame is made of butted aluminum and comes with modern gearing, versatile geometry, and class-leading equipment.

Additionally, the Rockhopper offers innovative sizing and custom Rx Tune suspension, ensuring that it provides the best fit and handling performance for every rider, regardless of their measurements. The bike comes in different sizes, each paired with the optimal wheel size, further ensuring a perfect fit.

With performance-focused components at every level, such as RockShox forks, tubeless-ready rims and tires, 1x drivetrains on the Expert and Elite, and dependable Shimano parts, the new Rockhopper is an excellent choice for any occasion.

The Trek Marlin bike has always been a popular choice for new riders and seasoned pros alike, but now it’s better than ever.

With a revamped design that offers more trail confidence and sleek looks, this bike is ready to take you on any adventure. Its geometry is perfectly dialed to give you a confident, planted feel when navigating steep and bumpy trails, while still being easy to pedal back up for another lap.

A new Thru-Skew axle provides better rear wheel security, and full-length, full-coverage guards protect your frame and keep your ride quiet.

With big 2.4˝ tires that elevate traction and an upgrade-ready frame, this bike is ready for any challenge.

Plus, it’s available in every size from XXS to XXL, so every rider can find a well-fitted bike with Smart Wheel Sizing that scales the wheel size with the bike size for comfortable standover height.

The Trek Marlin bike truly is a bike for everyone.

But which bike is the best fit for you? That’s the question we’re here to answer! In this article, we’re going to take a deep dive into the Rockhopper and Marlin , comparing their features, benefits, and capabilities.

We’ll help you choose the perfect ride for your goals, whether you’re a seasoned rider looking for a new challenge or a beginner who wants to explore the world on two wheels.

Introducing the Specialized Rockhopper

As mentioned in this article on the best budget hardtail mtb for bike adventures the Rockhopper Expert is a popular bike amongst fellow bikepackers. Considered a cross-country mtb with 100 mm travel and weighing around 30 lbs or 13.6 kg.

It is a bike that has been around for 30 years resulting in the constant redefining of the relationship between value and performance.

The Rockhopper has somewhat of a cult following. If you are after an affordable cross-country mountain bike this might be the one. They have even cheaper options, however, the Expert is preferred if you are looking to go on bike adventures.

When it comes to long-distance endurance events this is a rather popular steed of choice!

Introducing the Trek Marlin

We have reviewed the Trek Marlin previously and here’s what we had to say.

The Trek Marlin 8 is a trail bike designed to boost your confidence on any singletrack, while also being equipped with features for everyday use. The perfect choice which competes directly with The Rockhopper Expert as a potential budget hardtail mtb for bike adventures.

With updated geometry, this bike gives you more control on challenging trails without compromising on comfort or convenience.

The Marlin 8 is built to last, thanks to its 12-speed SRAM shifting and upgraded RockShox air-spring suspension fork.

This progressive trail bike is perfect for building skills and taking on daily life, with premium features in all the right places.

Whether you’re hitting the trails or cruising around town, the Trek Marlin 8 is a bike that will help you progress and build your skills for years to come.

Price – Rockhopper vs Marlin

When it comes to price the Rockhopper offers the most affordable price with the entry-level Rockhopper model starting at $560 and the most pricy option at around $1,400. While the Trek Marlin ranges from $629 to $1,440

Weight – Rockhopper vs Marlin

The  Specialized Rockhopper weighs around 30 lbs or 13.6 kg  while the  Trek Marlin weighs around 31.51 lbs or 14.29 kg (this is for each bike’s highest-end model).

All different build options and models weigh differently. But from the numbers above we can see that the Rockhopper is approximately 700 grams lighter. And it makes total sense as this is the bike best for fast and aerodynamic riding

Tire Clearance – Rockhopper vs Marlin

When it comes to tire clearance the Trek Marlin fits up to 29er × 2.4″ mountain bike tires. While the Rockhopper has room for up to 29er x 2.3″ tires.

The Marlin comes stock with Maxxis Ardent (27.5 x 2.4″ or 29 x 2.4″ tires). While the Rockhopper comes with Ground Control (27.5 x 2.3″ or 29 x 2.3″ tires).

Gearing – Rockhopper vs Marlin

When comparing the high-end models, the Rockhopper and Marlin both feature an SRAM SX Eagle groupset which means an 11-50T cassette combined with a 30T crank resulting in a 17.45″ granny gear and 79.41″ largest gear for riding down hills. (this is when running a 2.3″ tire, you can expect this gear ratio to be slightly different with the Marlins 2.4″ tires) But this would be a small difference.

Suspension – Rockhopper vs Marlin

Suspension is where these bikes slightly differ again.

Both the high-end models feature the RockShox Judy fork, however, for some reason, the fork on the Trek Marlin has 80mm of travel while the Specialized Rockhopper has 100mm and all the other bike models, both for the Marlin and Rockhopper all have 100mm of travel.

The entry-level models for both bikes have the Suntour XCE28 fork and the mid-range models slightly differ. With the Marlin featuring a RockShox Judy and the Rockhopper with a Suntour XCM fork.

Handlebars, Seatpost, and other specs – Rockhopper vs Marlin

When it comes to handlebars both the Marlin and rockhopper have a 15 mm rise for Medium sizes and up with a 5 mm rise for the smaller frames.

The main difference when it comes to seat posts is that the Trek Marlin 8 Gen 3 has dropper posts while the Rockhopper doesn’t and all the other models we compared are all rigid.

Geometry – Rockhopper vs Marlin

Geometry can play a big part in the difference between how a bike rides and feels. It is definitely something to consider when buying a bike.

Want to learn more about understanding bike geometry? Read this article which goes through all the jargon and what it means for a comfortable ride!

Here is where we see most of the differences in bikes. All the measurements below are in mm and are for both medium-sized bikes.

The main geometry specs that can paint the picture of the type of bike we are looking at are; stack/reach ratio, trail, chainstay, and wheelbase.

Firstly the stack/reach ratio for the Marlin is average when compared with other hardtail cross-country mtb with 1.44 vs 1.42 for the Rockhopper which is somewhat aggressive.

Suggesting that the Marlin is a more upright bike, in comparison, the Rockhopper is slightly more aggressive.

Chainstay is rather close with only 2 mm in difference with the Marlin boasting 438 mm vs the Rockhoppers 440 mm chainstay.

Along with this, the wheelbase length is 18 mm longer on the rockhopper. considering the chainstay is slightly longer also. I would argue that the Rockhopper may be the better bike choice, especially when it comes to geometry for bike adventures. The numbers mean in theory that it is the better-suited bike to allow for better-suited riding with gear loaded on the bike.

Now we’ll look at the trail. This tells the story of how each bike will corner and what the handling is like upfront.

Both trail measurements for the Marlin and rockhopper are considered very high. The Rockhopper has a 9.8 mm higher trail. When compared to the Marlin this means the Rockhopper in theory would have a slower, but calmer, steering response.

However, the Marlin is still rather high. But when compared together this favours the Rockhopper again as the more superior bike when it comes to bike adventures and carry gear. Especially in situations where you are climbing technical trails and need precision when steering.

Bikepacking – Rockhopper vs Marlin

The fact that bikepackers alike seem to have this cult following when it comes to the Rockhopper means that personally, I would recommend this bike over the Trek Marlin .

Even if the Marlin comes with a dropper post and the Rockhopper is rigid. And 1″ larger tire clearance on the Marlin .

When it comes to geometry it’s obvious that the Rockhopper is the superior bike out of the two.

And it’s also a bonus that the Rockhopper is slightly cheaper across the board.

To me, it’s a no-brainer to get a Rockhopper especially if you’re looking for a hardtail mtb for your next epic bike adventure.

About The Author

Codey Orgill, a seasoned bicycle adventurer, has been exploring the world on two wheels for over 10 years. Since embarking on his initial cycling journey, Codey Orgill has traversed numerous countries, experiencing a series of epic adventures.

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Trek Marlin+ 8

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Size / XS, SM, MD, LG, XL

At a glance

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Specifications

• Frame Size: XS, Alpha Platinum Aluminium, curved top tube, tapered head tube, internal routing, rack, mudguard and kickstand mount, UDH, Boost148, 12 mm thru axle; Size: S, M, L, XL, Alpha Platinum Aluminium, tapered head tube, internal routing, rack, mudguard and kickstand mount, UDH, Boost148, 12 mm thru axle
• Fork Size: XS, SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 100 mm travel; Size: S, M, L, XL, RockShox Recon Silver RL, Solo Air spring, Motion Control damper, lockout, tapered steerer, 46 mm offset, Boost110, Maxle Stealth, 120 mm travel
• Motor Bosch Active Line Plus, 50 Nm
• Battery Bosch CompactTube 400 Wh
• Wheels Size: XS, S, M, L, XL, Bontrager Line TLR 30, Tubeless-Ready, 28-hole, Presta valve; Size: XS, S, M, L, XL, Bontrager Line TLR 30, Tubeless-Ready, 32-hole, Presta valve
• Wheel Size 29" 27.5"
• Tires Size: XS, S, Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.60""; Size: M, L, XL, Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.60"
• Chain Shimano Deore M6100, 12-speed
• Crank FSA CK-220, 165 mm length
• Rear Derailleur Shimano Deore M6100, long cage
• Shifters Shimano Deore M6100, 12-speed
• Brakeset Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper
• Handlebar Size: XS, S, Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width; Size: M, L, XL, Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
• Saddle Bontrager Arvada, steel rails, 138 mm width
• Seatpost Size: XS, S, TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length; Size: M, L, XL, TranzX JD-YSP18, 150 mm travel, internal routing, 31.6 mm, 470 mm length
• Stem Size: XS, S, Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 35 mm length; Size: M, L, Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length; Size: XL, Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
• Grips Bontrager XR Trail Comp, nylon lock-on

Q: How much is a 2024 Trek Marlin+ 8?

A 2024 Trek Marlin+ 8 is typically priced around €3,299 EUR when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: Where to buy a 2024 Trek Marlin+ 8?

The 2024 Trek Marlin+ 8 may be purchased directly from Trek .

Q: What size wheels does the 2024 Trek Marlin+ 8 have?

The 2024 Trek Marlin+ 8 has 29" and 27.5" wheels.

Q: What size 2024 Trek Marlin+ 8 should I get?

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• Marlin 7 Gen 3

Trek Marlin 7 Gen 3

Marlin 7 is your best friend on the trail and wherever else you roll thanks to its confidence-boosting trail geometry. It finds the perfect balance between price and performance with an upgraded RockShox suspension fork that makes quick work of rocks and bumps in your path, and the huge gearing range of a SRAM 12-speed SX Eagle drivetrain. It's right for you if... You want a go-anywhere trail bike that's got upgrades where it matters most, but won't break the bank. You want to build skills on the trail, and need a bike with confidence-inspiring geometry and upgraded components that can keep up with your progress. The tech you get A lightweight aluminum frame with modern trail riding geometry and internal routing that keeps cables protected and the bike looking sleek. An upgraded RockShox suspension fork smooths out rowdy trails, 12-speed SRAM SX Eagle shifting, and the serious stopping power of hydraulic disc brakes. The final word Marlin 7 is the go-to trail bike for those wanting to build skills on the singletrack and get the right bang for their buck with upgraded suspension and confidence-inspiring geometry. Why you'll love it - Marlin Gen 3 gives you serious trail capability, with big tire clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city - Its upgraded RockShox fork gives you 100mm of suspension for turning rocks and roots in the trail into smooth-sailing - Rack and fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending - Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount - Sizes X-Small – Small: 27.5-inch - Sizes Medium – X-Large: 29-inch

* Subject to change without notice.

Part Numbers

Plug in and get hooked Soar up trails, through town, and everywhere in between with the ultimate do-anything e-MTB. Marlin+ is an electric hardtail that gives you all the versatility you crave and adds in a simple boost for flattening climbs and cruising with ease. It packs in the electric mountain bike features that matter most, like a Bosch drive unit and a confident and capable bike frame – without the hefty price tag. Are you ready to get hooked?

Up to 20mph

2 - 4 hours

We’ve been building bikes from top to bottom for five decades and backing up every single one with a lifetime warranty. We don’t expect you to run into any issues, but if you do, we’re here to support you around the globe.

Bosch has been in the gadget game since the 1800’s, engineering and honing the top tech in cars, electronics, and more. These days, Bosch is creating some of the world’s best e-bike motors — and just like your friends here at Trek, Bosch backs you with support all around the globe.

Simplicity is key Electric bikes are the most fun when you’re focused on the ride and not the controls. Marlin+ is built around that idea – the bike is loaded with technology that disappears underneath you when you’re riding, so you don’t have to fuss with settings and can just enjoy the ride.

More bike riding, less button mashing

AUTO mode adaptive motor support adjusts assistance level automatically while you ride to help you stay in your flow. It recognizes speed reductions and tweaks support to match, so you’re always riding with just the right boost.

True power lies within

An internal Bosch CompactTube 400 watt-hour battery is fixed in the downtube, where it’s clear from the elements. Its high energy density allows for a slim and sleek profile, while an easy-to-use charge port makes topping it up a cinch.

Intuitive and informative

The Purion 200 remote gives you all the data you want with a bright color display that clearly shows your battery life, range, and speed. Simple controls let you change display data and power up your ride.

Your favorite bike goes electric Marlin+ builds off the same platform of our most popular Trek – Marlin. That means you get the same confident handling and versatility as traditional Marlin but with a little boost!

Dialed for the dirt

Take on the rough stuff with a 120mm suspension fork, dropper seatpost that lets you move around, and stiff front and rear thru axles that keep handling precise. Button that up with trail-ready MTB geometry and you’ll be ready to cut loose on the dirt.

Does your ride keep rolling beyond the trail? Marlin+ is ready for full customization for cruising the town. Rack, fender, and kickstand mounts let you add on all the gear you need on commutes to the campus or office.

• Shop Marlin+ Accessories

Your safety matters on every ride — that’s why we set our standards sky high. Every Marlin+ is backed by Bosch and Trek, so you can count on it to exceed safety standards. And because every detail on your bike is important, we’re here to get your Marlin+ is dialed for you as soon as it’s unboxed. You never even have to lift a wrench.

UL certified

The e-systems on all Trek e-bikes are third-party tested to meet leading e-bike safety standards, and we're proud to use only systems in the US that pass stringent UL 2849 certification.

Top-tier batteries

The cells in Trek e-bike batteries come only from Tier 1 suppliers, which means they're from companies that have the highest requirements for quality, the best documentation, the longest qualification timelines, and the most experience manufacturing.

Better battery management

Every battery you'll find on a Trek e-bike has a sophisticated battery management system (BMS), which is like a security guard for the battery's cells.

Looking for something else with a boost?

Want a little more assist? Powerfly is a high-power electric mountain bike for taking on the trails with plenty of assistance for effortless climbs.

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Dual Sport+

Want something a little more city and a little less mountain bike? Dual Sport+ is a versatile electric assist city bike for cruising through town.