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Trek Session 8 27.5 review
Impressive pedigree, but a letdown in the rough
‘ABP’ rear suspension provides a solid, supple action
Relatively short front end feels cramped, high bottom bracket and short frame deliver a sometimes precarious-feeling ride, harsh fork and weak brakes are disappointing for the price
While Trek's top-end Sessions had a complete redesign for 2018, this budget model uses a frame carried over from previous years. It’s a design that’s enjoyed huge success on the World Cup circuit, but how has it stood the test of time?
Editor's note: This bike has now been superseded by the 2019 model which was not available for review at the time of this test
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Trek Session 8 27.5 frame
Trek’s ABP (Active Braking Pivot) suspension system is essentially a single-pivot with linkage-driven shock design, except it uses a rear-axle pivot to reduce the effect of braking on the suspension action.
The shock is compressed between the upper rocker link and the forward tips of the chainstays. Trek calls this set-up ‘Full Floater’ and uses it to tweak the leverage curve so that the Session provides 210mm of slightly progressive travel.
A ‘Mino Link’ chip allows the bottom-bracket height to be adjusted by 10mm and the head angle by half a degree.
Trek Session 8 27.5 kit
To be blunt, you don’t get all that much for your money.
The Session 8 has solid DT Swiss wheels, Bontrager tyres and SRAM drivetrain parts, but its BoXXer RC coil fork houses RockShox’s more basic Motion Control damper. The SRAM Guide R brakes were also disappointing, lacking in power and developing a spongy feel after a few muddy rides.
Trek Session 8 27.5 ride
The Session felt small and cramped. In fact, I found myself double-checking that Trek had sent the XL frame I’d requested.
Not only is the reach noticeably short, but the minimal-rise bar (15mm) sits low on the negative-rise stem. With a high-ish bottom bracket, the bar feels even lower when riding. At 6ft 3in, I was practically rubbing my knees on the bar when I leaned forward to pedal. Plus things felt precarious in steep or technical sections.
I ended up swapping out the bar for something taller and with less backsweep, as well as putting a 5mm spacer under the stem. Even then, the high bottom bracket and short front centre meant the ride was far less stable or confidence-inspiring when things got fast or technical.
The Trek’s higher centre of gravity makes pushing hard into turns feel like more of a gamble too, despite the impressive grip of the high-volume Bontrager G4 tyres.
Up front, the Motion Control fork also puts the Session at a distinct disadvantage. It’s noticeably harsh on high-speed hits in particular, where it spikes badly. The damping just can’t react in time to keep up with square-edged bumps and the result is a clunky feeling through the bar.
In contrast, the rear suspension is very supple. The RockShox Vivid R2C shock is fancy for this price point, but doesn’t offer any big advantage over the simpler coil shocks found on other bikes.
Because of the short and tall frame, I had to run the rebound damping (particularly the high-speed rebound) pretty slow to provide enough stability over jumps and G-outs, and this compromised sensitivity a little. I also swapped the stock 500lb/in spring for a 550lb/in replacement to make the bike feel more balanced.
Trek Session 8 27.5 verdict
The outdated geometry, harsh fork and underwhelming brakes meant I really struggled to get on with the Trek.
Smaller riders can go some way to addressing the first complaint by going up a size, to get a longer reach (if the seat tube isn’t too long), but the high bottom bracket still undermines the handling somewhat. Considering all this (as well as the price), it's a hard bike to recommend.
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2020 Trek Session 8 27.5 Bike (discontinued)
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Specifications
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Trek Session 8 DH 27.5
- AUS $ NZD $ USD $ CAD $ GBP £ EUR €
Colour / Matte Dnister Black
Size / S, M, L, XL
Weight / 38 lb 6.5 oz (17,420 g)
At a glance
Full Floater, EVO link suspension, ABP (Active Braking Pivot), Mino Link adjustable geometry, Internal cable routing
Where To Buy
Specifications
- Frame Alpha Platinum Aluminum with integrated frame protection
- Fork RockShox BoXXer RC, coil spring (S, M red; L, XL blue), low speed compression, internal preload, Motion Control IS, 20mm Maxle DH, 200mm
- Shock RockShox Kage RC, coil spring, rebound, adjustable hydraulic compression damping, tuned by Trek Suspension Lab, 8.75" x 2.75", S 400lb, M 450lb, L 500lb, XL 500lb springs
- Hubs DT Swiss FR2150, 110x20mm front, 157x12mm rear
- Wheels DT Swiss FR2150
- Wheel Size 27.5"
- Tires Bontrager G4 Team Issue, 27.5" x 2.35"
- Chain 445mm, MRP, Truvativ Descendant, 36 tooth, SRAM PC-1110
- Crank Truvativ Descendant
- Bottom Bracket 356mm, Sealed cartridge
- Rear Derailleur SRAM GX DH, Roller Bearing Clutch
- Shifters SRAM GX DH, 7-speed
- Brakeset SRAM Guide R hydraulic disc, SRAM Guide R
- Handlebar Bontrager Rhythm Elite, 31.8mm, 15mm rise
- Saddle Bontrager Evoke 2, chromoly rails
- Seatpost Bontrager Rhythm Elite, 2-bolt head, zero offset, 31.6mm, Standard single bolt, 31.6mm, Standard single bolt
- Stem Bontrager Direct Mount, 31.8mm
- Grips Bontrager Rhythm, dual lock-on
- Headset FSA Orbit, sealed cartridge bearing
Q: How much is a 2017 Trek Session 8 DH 27.5?
A 2017 Trek Session 8 DH 27.5 is typically priced around $4,000 USD 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 2017 Trek Session 8 DH 27.5?
The 2017 Trek Session 8 DH 27.5 may be purchased directly from Trek .
Q: How much does a 2017 Trek Session 8 DH 27.5 weigh?
A 2017 Trek Session 8 DH 27.5 weights 38 lb 6.5 oz (17,420 g).
Q: What size wheels does the 2017 Trek Session 8 DH 27.5 have?
The 2017 Trek Session 8 DH 27.5 has 27.5" wheels.
Q: What size 2017 Trek Session 8 DH 27.5 should I get?
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Trek Session 8 2021
About the Trek Session 8 2021
The Trek Session 8 2021 is a Full suspension Downhill Mountain Bike with a alloy frame. Equipped with a SRAM GX drivetrain of 7 gears (1x7). Its features include internal routing, boost 110 , and e-thru axle. The bike weighs approximately 16,27 kg.
Internal routing
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- Rider Notes
2019 Trek Session 9.9 29
A 29″ carbon frame full suspension downhill bike with high-end components. Compare the full range
Manufacturer Price
For This Bike
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Based on frame geometry and build specs.
A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.
Session 9.9 29
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Add custom gearing
Mar 2019 · McCoy
Faster than a speeding bullet
Read Review
Nov 2018 · Drew Rohde
A review worth reading if you are considering a 29er DH bike. The Trek Session 9.9 downhill bike has a couple interesting quirks but is without a doubt one of the best DH bikes we've ridden in. If you're a racer looking for pick up speed and drop seconds, check this bike out!
Oct 2018 · Paul Aston
One of the most successful, recognizable silhouettes on the DH circuit now comes with wagon wheels. So how does it compare to the newest crop of DH bikes?
Ultra light and stiff
Exceptional, simple finish
Balanced, aggressive geometry
Quick acceleration and efficient pedaling
Possibly too light and stiff
Top of the line price tag
Lacking traction in rough stuff
Reach may limit taller riders
Sep 2018 · Seb Stott
A pricey bike let down by a basic fork, disappointing brakes and dated geometry
‘ABP’ rear suspension provides a solid, supple action
Relatively short front end feels cramped, high bottom bracket and short frame deliver a sometimes precarious-feeling ride, harsh fork and weak brakes are disappointing for the price
If you're a DH racer, your special edition bike usually comes out during worlds - if you're good enough to qualify and your bike sponsor loves you.
May 2017 · Matt Phillips
All new carbon framesets for both 27.5 and 29 inch wheels for Trek's downhill race bike
Trek releases the 2018 Session with updated geometry, refined linkage, and a revamped Float X2 shock. There's also a 29 inch version, which the internet will probably have nothing to say about.
May 2017 · Smurf
The world's first production, carbon 29er downhill bike
Last updated September 16 Not listed for 1,686 days
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2019 Trek Session 8 (Custom)
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COMMENTS
Weight. M - 17.66 kg / 38.93 lbs. Weight limit. This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors ...
Session 8 27.5. Model 592253. Retailer prices may vary. Session 8 is the DH mountain bike with a park-focused geometry that shines on big hits at the bike park. It's built with a burly aluminum frame, 200mm/210mm front and rear suspension, and a SRAM GX DH parts group chosen to stand up to the roughest lines you can find.
The 2019 Trek Session 8 27.5 is an Downhill Aluminium / Alloy mountain bike. It sports 27.5" wheels, is priced at $4,729 USD, comes in a range of sizes, including S, M, L, XL, has RockShox suspension and a SRAM drivetrain. The bike is part of Trek 's Session range of mountain bikes. ABP (Active Braking Pivot), Integrated frame protection, Mino ...
Session C 27.5 Frameset. $4,399.99. Buy. Trek 2022 Session 29 Lower Headset 27.5 Convert Cup. Trek 2022 Session 29 Lower Headset 27.5 Convert Cup. $10.99. Buy. Free shipping on orders over $50 (continental U.S. only). International shipping available.
Trek Session 8 29 GX Overview. Never a brand to be content with their success, Trek caught everyone's attention in April with the release of the all-new, highly-refined Session. ... When discussed between our two testers, they felt committing to the two thousand dollar price jump for the highest tier, Session 9 XO1 build at $6,999 USD wasn't ...
2019 Trek. Session 8 27.5. A 27.5″ aluminum frame full suspension downhill bike with high-end components. Compare the full range. MSRP: $4,729: Weight: ... harsh fork and weak brakes are disappointing for the price. Read Review. Cracked Dirt: TVS's Trek Session. Oct 2017.
Impressive pedigree, but a letdown in the rough
Trek Session 8 2019 xl Bike is in great condition with just a few normal scratches in the normal areas. Tires are at 90%+, sram guide 4 piston brakes, sram gx 7 speed drive train, Shimano 36t ...
Session 8 27.5. 5 Reviews / Write a Review. Model 572461. Retailer prices may vary. Session 8 is the DH mountain bike with a park-focused geometry that shines on big hits at the bike park. It's built with a burly aluminum frame, 200mm/210mm front and rear RockShox suspension, and a SRAM GX DH parts group chosen to stand up to the roughest lines ...
About the Trek Session 8 2019. The Trek Session 8 2019 is a Full suspension Downhill Mountain Bike with a alloy frame. Equipped with a SRAM GX drivetrain of 7 gears (1x7). Its features include boost 110 , hydraulic disc brakes, and tapered head tube. The bike weighs approximately 17,01 kg.
Session 8 29 GX. Model 5255841. Retailer prices may vary. Session 8 is a downhill mountain bike with a robust alloy frame and high-pivot suspension design that keeps you nimble, planted, and blazing fast on even the most punishing runs. Compare.
Watch Count: 0. 2019 Trek Session 8. • Aluminum frame, full suspension, front 200 travel, rear 210 travel, good condition just normal cosmetic wear for a 2019 bike. • Large size. • 7 Speed ...
Still For Sale: since 6 hours ago. View Count: 8,088. Watch Count: 49. 2019 trek Session 8, aluminum frame, full suspension and lots of suspension, front 200 travel, rear 210 travel, good ...
Flat rate shipping to Hawaii and Alaska. Free standard shipping on all bikes (continental U.S. only). Flat rate shipping to Hawaii and Alaska. $4,399.99. Buy. Session C 27.5 Frameset. Session C 27.5 Frameset. $4,399.99. Buy.
Session 8 29 GX. 3 Reviews / Write a Review. $5,499.99. Model 5279084. Retailer prices may vary. Session 8 is a downhill mountain bike with a burly alloy frame and high-pivot suspension design that keeps you nimble, planted, and blazing fast on even the most punishing runs. Compare. Color / Satin Trek Black. Select a color.
2019 TREK SESSION 8 For sale on Pinkbike buysell. Category: Downhill Bikes Condition: Good - Used, Mechanically Sound Frame Size: L
The 2017 Trek Session 8 DH 27.5 is an Downhill Aluminium / Alloy mountain bike. It sports 27.5" wheels, is priced at $4,000 USD, comes in a range of sizes, including S, M, L, XL, has RockShox suspension and a SRAM drivetrain. The bike is part of Trek 's Session range of mountain bikes. Full Floater, EVO link suspension, ABP (Active Braking ...
Session is an iconic gravity bike built for high-speed control and big mountain fun on downhill courses, bike parks, and the world's most rugged mountain bike terrain. It's equipped with our most advanced suspension designs and backed by a legacy of winning at the world's greatest gravity events, from the World Cup Downhill circuit to Red Bull ...
2019 / 2020 / 2021. Groupset. SRAM GX Frame material. Alloy Wheel size. 27,5" ... Full suspension Weight. 16,27 kg Front travel. 200mm Rear travel. 210mm Price. $4,799.99 Compare Remove About the Trek Session 8 2021. The Trek Session 8 2021 is a Full suspension Downhill Mountain Bike with a alloy frame. ... Trek Session 8 2021 has a gear ratio ...
2019 Trek. Session 9.9 29. ... Top of the line price tag. Lacking traction in rough stuff. ... Trek Session 8 27.5 review. Sep 2018 · Seb Stott. A pricey bike let down by a basic fork, disappointing brakes and dated geometry. Highs 'ABP' rear suspension provides a solid, supple action.
Still For Sale: since Feb 1, 2024 at 16:29. View Count: 2,048. Watch Count: 22. Trek Session 8 (small) Fork: Rockshox Boxxer Select (some wear on stanchion, probably wants replaced) Shock: Fox Van ...