tour minute 85 sx

2021 KTM 85 SX [Model Overview]

The 2021 KTM 85 SX: The Competitive Edge In Junior Motocross

Model overview.

• Specifications

The 2021 KTM 85 SX is the final step in Junior Motocross, and to provide the best chances at a win, KTM makes two versions of the bike for the 2021 lineup . Both are powered by the same 85cc two-stroke single, producing over 20 HP, with the only difference between the two being wheel sizes. For the shorter rider, the 85 SX 17/14 gives a 17 inch front wheel, with a 14 inch rear. The 85 SX 19/16 similarly gives the taller rider a 19 inch front wheel and a 16 inch rear.

This Austrian-made bike is equipped much more like a fully-fledged supercross bike than a motocrosser, but it will still be competitive in both categories. A full 6-speed manual transmission is tuned specifically to get the power to the dirt, and also delivers a slightly more tame powerband once into the middle revs for long distance cross country racing. WP XAct suspension is once again the suspension of choice.

KTM’s designers have also not only given the 85 SX series a 6-speed transmission but have also included a wet, multi-disc hydraulic clutch, designed by FORMULA racing. This is a race-grade product and lets the junior rider get an excellent feel for the bite point and lightning fast gear changes.

The 2021 KTM 85 SX 17/14 starts at $6,099 USD / $6,899 CAD, while the 85 SX 19/16 starts at $6,299 USD / $7,099 CAD.

On this page: we’ve curated specs, features, news, photos/videos, etc. so you can read up on the new 2021 KTM 85 SX in one place.

General Info

• Price: $6,099 USD / $6,899 CAD
• 6-speed manual transmission
• WP XAct racing suspension included
• Kickstarter only, no electric start
• Engine Type: 85cc two-stroke single
• Horsepower: Over 20 HP
• Torque: Not provided by manufacturer
• Wet Weight : 150 lbs (approx 68 kg)
• Seat Height: 34 to 35 inches (865mm to 890mm)

Competitors

• Kawasaki KX85
• Yamaha YZ85
• Honda CRF110F

2021 KTM 85 SX Specifications

2021 KTM 85 SX Features

Crankcases and engine covers, transmission, 2021 ktm 85 sx photos, 2021 ktm 85 sx videos, ktm websites, wbw is an a07 online property.

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2020 KTM 85 SX

Two variants of the 85 SX open up options for young teens.

For 11- to 15-year-olds, the KTM 85 SX models offer a range in tire sizes (and consequently seat heights) to suit the formidable growing stage of the tween and teenage years. This motocrosser is specified for young riders who have more experience and are looking to race competitively in junior classes. The 17/14 wheel size is perfect for those looking to transition from the 65cc class while the 19/16 model adds a super-mini step before moving onto full-size machines. A chrome-moly steel frame (much like those seen in KTM’s larger dirt bikes) houses its 85cc single-cylinder two-stroke engine and fully adjustable WP Xact suspension assists in tackling the technical tracks that the aspiring racers will come across.

2020 KTM 85 SX 19/16 And 17/14 Reviews, Comparisons, And Competition

The 85 SX won Dirt Rider ’s 2016 85cc MX Shootout for its smooth, broad, controllable power with great over-rev and overall didn’t have any flaws. DR did note that this is a bike geared for top-level racers, so trailbikes would be recommended for new young riders.

Multiple manufacturers are taking into account the younger riders, so competition for the 85 SX is pretty fierce: Husqvarna TC 85 19/16 and 17/14, Kawasaki KX85, TM MX 85, Suzuki RM85, and Yamaha YZ85 .

KTM 85 SX 19/16 And 17/14 Updates For 2020

No major updates were announced for 2020. The two variants (19/16 and 17/14) represent the two different wheel sizes available.

2020 KTM 85 SX 19/16 And 17/14 Claimed Specifications

2015 KTM 85 SX

Thanks to its rugged character, the KTM 85 SX is an unstoppable motorcycle that can attack the most difficult terrains with poise.

It comes with a 43 mm upside-down fork which delivers 270 mm of suspension travel and a PDS shock absorber with adjustable rebound and compression damping. You also get a new swingarm which is 500 grams lighter than the previous one and newly designed chain links and brake-hose brackets.

At the heart of the KTM 85 SX sits an 84.93 cc, 1-cylinder, 2-stroke, water-cooled engine with reed intake and exhaust control. The unit transfers its power to the ground by means of a six speed, claw shifted transmission with multidisc clutch.

Other notable features include the lightweight wheels with CNC-machined hubs and high end Excel rims, lightweight wave brake discs (220/210 mm f/r) with radially mounted brake calipers (4 pistons at the front, 2 at the rear), revamped graphics and the chrome-molybdenum steel frame with a lightweight aluminium rear end.

Hit the jump for more information.

• Make: Array
• Model: 2015 KTM 85 SX
• Engine/Motor: 1-cylinder 2-stroke engine, water-cooled, with reed intake and exhaust control
• Transmission: 6-speed
• [do not use] Vehicle Model: Array

2015 KTM 85 SX: The Little Big One.

In the junior class from 11 to 15 years of age, there are no longer any beginners pootling around. This is where future champions fight for victory, whether it be in the Junior WC or a regional championship. The 85 SX is regarded as a winning bike in this scene. With the most powerful engine in the field and an ultra-light, sturdy chassis, it has nothing to fear from any full-size bike.

2015 KTM 85 SX Key Features:

Masters the toughest tracks.

The proven 43 mm upside-down fork with 270 mm of suspension travel and the PDS shock absorber ensure optimum traction and suspension comfort on the KTM 85 SX. Rebound and compression damping can be adapted individually to track and rider in no time at all.

As before, the newly developed swingarm is manufactured from lightweight aluminium in the form of a single casting. The very latest calculation methods have allowed weight to be reduced by 500 grams. Furthermore, newly designed chain links and brake-hose brackets plus the proven chainguide from the full-size SX models have been employed.

Unrivalled power

Thanks to the optimally dimensioned connecting rod, the crankshaft excels with minimum vibration and maximum durability.

State-of-the-art 2-stroke technology in conjunction with a precise 6-speed transmission and a hydraulic clutch provide the basis for the superiority of the 85 SX in all junior race series.

The compact cylinder with 47 mm bore ensures that the 85 SX achieves peerless performance thanks to the ports dimensioned for optimum gas flow and the centrifugally-controlled exhaust valve. A reworked rear transfer port guarantees even better durability.

What's good for the bigger KTM offroad bikes is good for the 85 SX: air filter replacement without tools in a matter of seconds.

Constant temperature control and hence consistently high performance are ensured by an intelligent cooling circuit with integrated crankcase cooling and two radiators.

The 85 SX engine is equipped with a modern, hydraulic clutch actuation system from FORMULA, which guarantees smooth and very precise clutch control.

Stable in every situation

The frame made of high quality, chrome-molybdenum steel with a lightweight aluminium rear end guarantees maximum stability at a minimum weight. Its hardwearing plastic coating is still in a classy anthracite metallic.

The revamped, cool graphic design provides the bike with a striking new appearance.

The bodywork is designed ergonomically and functionally in such a way that the motorcycle is in perfect harmony with the rider.

The 85 SX is equipped with an extremely sturdy, tapered Renthal handlebar made from high-grade aluminium alloy, which features an offset specially designed to meet the demands of motocross.

Wheels and brakes

The wheels are fitted with lightweight, CNC-machined hubs and high-end Excel rims, plus black-coated spokes with lightweight aluminium nipples, guaranteeing highest levels of stability while keeping weight to a minimum. The 85 SX is now equipped with the very latest generation tyre from MAXXIS, featuring a profile that guarantees optimum grip on every surface.

The greater the power, the more important the brakes. Here the products from brake specialist FORMULA live up to all the expectations of young racers. Together with the lightweight wave brake discs (220/210 mm f/r), the proven, radially mounted brake calipers (4 pistons at the front, 2 at the rear) set the benchmark in terms of application and brake performance.

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2022 KTM SX 85 17/14

Identification

Transmission, wheels & tires, technical specifications, paint & finish, convenience.

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2024 KTM 85 SX 19/16 Specs, Top Speed, Price, Features

KTM 85 SX 19/16 Specs, Top Speed, and Price are listed below. 

The specifications of the KTM 85 SX 19/16 , include its Top Speed, weight, Range, horsepower, Seat Height, and other aspects.

The 2024 KTM 85 SX – in big wheel guise – is the first real step into the big leagues.

It is Lightweight, powerful, and reliable, the KTM 85 SX boasts real big bike components in scaled-down 85 cc geometry, providing the ultimate kickstart to any young racing career.

  KTM 85 SX 19/16 Specs, Top Speed , Price, Horsepower, Seat Height, Weight 

2024 ktm 85 sx 19/16 price in usa.

 *MSRP: $ 6849 plus $ 385 freight

Specs Summary:

Top speed: 85 mph  (est.), horsepower: 53 hp, weight: 68 kg  , seat height: 875 mm, engine displacement:84.9 cm³, ktm 85 sx 19/16 specs,  chassis & dimensions, standard features of ktm 85 sx 19/16, engine & exhaust.

It took extreme levels of ingenuity to fit the race-winning formula of KTM’s bigger 2-strokes into a compact 85 cc engine. The super-compact powerplant is fitted with a 6-speed gearbox and delivers class-leading power and rideability throughout the entire rev range. The power valve plays a key role in tailoring power delivery to suit track conditions and rider ability, ensuring that the only rider surprised by the incredible performance is the competition.

The cylinder on the KTM 85 SX has a bore and stroke of 47mm and 48.95 mm respectively. It features a sophisticated power valve system, which controls both the exhaust valve and the sub-exhaust ports, giving the bike excellent torque and power delivery. This translates into significant midrange performance, reducing the need to overwork the clutch in loamy or sandy conditions. An adjuster screw allows the opening time of the power valve to be adjusted to suit rider preference and track conditions.

CRANKCASES AND ENGINE COVERS:

The crankcases are manufactured using a high-pressure die-cast production process, keeping wall thickness to a minimum while retaining strength and durability. The design of the cases is very compact and aims at positioning the shaft arrangements as close as possible to the center of gravity, contributing to better handling.

TRANSMISSION

The KTM 85 SX features a lightweight 6-speed gearbox, engineered to take a beating. The gear ratios have been developed to perfectly match the characteristics of the engine, with easy and precise shifting allowing the rider to slot in the next gear quickly and confidently. The gearbox also features a driveshaft that uses a screw to secure the front sprocket, and a diaphragm spring instead of a circlip, to ensure the front sprocket remains firmly in place. As with all KTM SX models, the KTM 85 SX transmission has a “no-dirt” gear shifter which, like the footpeg design, prevents dirt build-up.

Ultra-durable thanks to modified clutch components, the 2024 KTM 85 SX allows riders to actuate the clutch level with ease, thanks to the FORMULA hydraulic system, which conveniently ensures that play is always compensated for. This means the clutch “bite” point remains consistent throughout the ride and under all conditions.

The KTM 85 SX features a lightweight crankshaft with optimized balancing for reduced vibration and oscillating mass. As light as the crankshaft is, the rotational inertia has not been compromised, ensuring maximum torque and revs, as well as easy rideability.

The KTM 85 SX is fitted with a race-proven MIKUNI TMX carburetor with a 38 mm flat slide. This provides buttery smooth and controllable power up to the rev limiter, while the angle of the intake manifold reduces any overflow of fuel. It’s also less sensitive to different altitudes and temperatures, so you can pin it wherever, whenever.

Maintaining the optimal engine temperature is crucial to ensuring consistent horsepower throughout the ride. The KTM 85 SX features radiators that are positioned for a lower center of gravity. Their design matches the shrouds perfectly and offers a great slim feel to the ergonomics.

By using CFD technology (computational fluid dynamics) together with clever coolant circuit routing, the innovative system ensures the optimum engine temperature for the highest performance, no matter what the conditions.

The radiators also feature special protectors that serve not only as protection from flying rocks and debris but also as a brace that disperses energy around the radiators in the event of an impact.

The exhaust system has been designed to perfectly match the engine’s power characteristics and contributes to the outstanding all-around performance and rideability. The header pipe is produced using a 3-dimensional stamping process.

Once the components have been shaped, they are robot welded to ensure the highest level of quality, consistency, and durability. The lightweight and compact silencer guarantees that sweet 2-stroke sound and falls safely within the noise limits for racing.

The frame on the KTM 85 SX is a scaled-down version of the multi-championship-winning full-size frames. Made from hydroformed chromium-molybdenum steel tubes that are robot welded, the frame is pinpoint accurate, ensuring the highest levels of consistent quality and flex characteristics.

The one-piece swingarm is manufactured using a gravity die-cast production process for exceptional strength at the lowest possible weight. It offers a wide range of adjustments for the rear wheel, allowing for a shorter wheelbase on tighter, twisty tracks, or a longer wheelbase for greater stability on longer, more choppy tracks. The swingarm’s chain measurement markings are visible from above, making adjustment simpler and more accurate.

Not only does this lightweight aluminum subframe provide rear fender stability and strong support, it also adds to the overall rigidity and handling of the KTM 85 SX.

The 2024 KTM 85 SX features a ‘big wheel’ Excel rim combo powder coated in black, with a 19-inch front wheel and a 16-inch rear. These are mounted on CNC-machined hubs and wrapped in MAXXIS MX-ST tires which deliver exceptional straight-line stability and excellent traction when chasing the holeshot. 

FRONT SUSPENSION

The KTM 85 SX front fork features the same suspension technology found in the full-size motocross range. The WP XACT fork with AER technology consists of a split fork design with a capsuled air spring in the left leg and the trusted oil damping system in the right leg.

The preload adjustment is extremely simple and can be adjusted by using the single air pressure valve and supplied air pump. The design also allows for easy access to compression and rebound clickers.

REAR SUSPENSION

The KTM 85 SX boasts a WP XACT rear shock absorber with a sophisticated PDS (Progressive Damping System). This design offers a high progression rate and an excellent response to uneven terrain – just like the bigger bikes. It also allows an impressive 305 mm of rear-wheel travel and is fully adjustable for preload, compression, and rebound.

Bringing this little screamer to a stop is down to the Formula brake system with radial calipers – four pistons in front, two in the rear – with lightweight Wave brake discs. The system is the benchmark in terms of controlled action and braking performance, ensuring powerful and confident braking.

The KTM 85 SX airbox is a masterclass in design, optimizing the tiny space available to deliver the best possible performance, while still maintaining the highest level of filter protection. The air filter is easily accessed, without tools, by removing the left side panel. The Twin Air filter and filter cage design feature a simple, secure mounting system, making filter maintenance quick and easy, which means less time in the pits, and more time winning races.

Holding approximately 5.2 liters of pre-mixed fury, the tank is perfectly shaped to be small and slim to allow for easy and uninhibited rider movement, while still providing enough range to cover a full race at full throttle.

ERGONOMICS & COMFORT

Hang on tight – the KTM 85 SX features a strong, lightweight, tapered aluminum handlebar, with a specifically shaped bend to suit its overall ergonomics. Additionally, the bike comes standard with ODI lock-on grips, which include a vulcanized grip on the right side and a lock-on grip on the left that does not require glue or wire for mounting.

The KTM 85 SX has “no-dirt” footpegs, which have a simple but effective self-cleaning system that ensures the footpegs return to their original position, providing complete control in all conditions.

Providing the perfect blend of grip, durability, and comfort, the 2024 KTM 85 SX seat does everything you’d expect it to while showing off it’s it’s undeniable READY TO RACE and ‘orange’ heritage.

BODYWORK & GRAPHICS

Rocking an all-white and orange color plastics combination and orange seat cover – not to mention bold, black, orange, and purple graphics – the 2024 KTM 85 SX lines up behind the gate with pure race-winning intent.

That’s all about the   KTM 85 SX 19/16 Specs, Price, Top Speed, Review , and Images, I hope it will be useful to you, but if you have any questions about this post, then please comment in the below comment box, will try to solve it as soon as possible. Thanks…

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THE GATE DROPS HERE

2024 KTM 85 17/14

Scroll down

Base Price: 6,599.00 USD*

*MSRP: $ 6599 plus $ 410 freight

• Engine & Exhaust
• Ergonomics & Comfort
• Bodywork & Graphics

01. Engine & Exhaust

It took extreme levels of ingenuity to fit the race-winning formula of KTM's bigger 2-strokes into a compact 85 cc engine. The super-compact powerplant is fitted with a 6-speed gearbox and delivers class-leading power and rideability throughout the entire rev range. The powervalve plays a key role in tailoring power delivery to suit track conditions and rider ability, ensuring that the only rider surprised by the incredible performance is the competition.

The cylinder on the KTM 85 SX has a bore and stroke of 47mm and 48.95 mm respectively. It features a sophisticated power valve system, which controls both the exhaust valve and the sub exhaust ports, giving the bike excellent torque and power delivery. This translates into significant midrange performance, reducing the need to overwork the clutch in loamy or sandy conditions. An adjuster screw allows the opening time of the power valve to be adjusted to suit rider preference and track conditions.

Crankcases and engine covers

The crankcases are manufactured using a high-pressure die-cast production process, keeping wall thickness to a minimum while retaining strength and durability. The design of the cases is very compact and aims at positioning the shaft arrangements as close as possible to the center of gravity, contributing to better handling.

Transmission

The KTM 85 SX features a lightweight 6-speed gearbox, engineered to take a beating. The gear ratios have been developed to perfectly match the characteristics of the engine, with easy and precise shifting allowing the rider to slot in the next gear quickly and confidently. The gearbox also features a driveshaft that uses a screw to secure the front sprocket, and a diaphragm spring instead of a circlip, to ensure the front sprocket remains firmly in place. As with all KTM SX models, the KTM 85 SX transmission has a "no-dirt" gear shifter which, like the footpeg design, prevents dirt build-up.

Ultra-durable thanks to modified clutch components, the 2024 KTM 85 SX allows riders to actuate the clutch level with ease, thanks to the FORMULA hydraulic system, which conveniently ensures that play is always compensated for. This means the clutch "bite" point remains consistent throughout the ride and under all conditions.

The KTM 85 SX features a lightweight crankshaft with optimized balancing for reduced vibration and oscillating mass. As light as the crankshaft is, the rotational inertia has not been compromised, ensuring maximum torque and revs, as well as easy rideability.

The KTM 85 SX is fitted with a race-proven Keihin PWK 28 carburetor with a flat slide. This provides buttery smooth and controllable power all the way up to the rev limiter, while the angle of the intake manifold reduces any overflow of fuel. It's also less sensitive to different altitudes and temperatures, so you can pin it wherever, whenever.

Maintaining the optimal engine temperature is crucial to ensuring consistent horsepower throughout the ride. The KTM 85 SX features radiators which are positioned for a lower center of gravity. Their design matches the shrouds perfectly and offers a great slim feel to the ergonomics. By using CFD technology (computational fluid dynamics) together with a clever coolant circuit routing, the innovative system ensures the optimum engine temperature for the highest performance, no matter what the conditions. The radiators also feature special protectors that serve not only as protection from flying rocks and debris but also as a brace that disperses energy around the radiators in the event of an impact.

The exhaust system has been designed to perfectly match the engine's power characteristics and contributes to the outstanding all-round performance and rideability. The header pipe is produced using a 3-dimensional stamping process. Once the components have been shaped, they are robot welded to ensure the highest level of quality, consistency and durability. The lightweight and compact silencer has been reworked with improved packing wool (40 g lighter), guaranteeing that sweet 2-stroke sound and falling safely within the noise limits for racing.

02. Chassis

The frame on the KTM 85 SX is a scaled-down version of the multi-championship-winning full-size frames. Made from hydroformed chromium-molybdenum steel tubes that are robot welded, the frame is pin-point accurate, ensuring the highest levels of consistent quality and flex characteristics.

Not only does this lightweight aluminum subframe provide rear fender stability and strong support, it also adds to the overall rigidity and handling of the KTM 85 SX.

The one-piece swingarm is manufactured using a gravity die-cast production process for exceptional strength at the lowest possible weight. It offers a wide range of adjustment for the rear wheel, allowing for a shorter wheelbase on tighter, twisty tracks, or a longer wheelbase for greater stability on longer, more choppy tracks. The swingarm's chain measurement markings are visible from above, making adjustment simpler and more accurate. 

The 2024 KTM 85 SX features a 'big wheel' Excel rim combo powdercoated in black, with a 17-inch front wheel and a 14-inch rear. These are mounted on CNC-machined hubs and wrapped in MAXXIS MX-ST tires which deliver exceptional straight-line stability and excellent traction when chasing the holeshot.

Front suspension

The KTM 85 SX front fork features the same suspension technology found in the full-size motocross range. The WP XACT fork with AER technology consists of a split fork design with a capsuled air spring in the left leg and the trusted oil damping system in the right leg. The preload adjustment is extremely simple and can be adjusted by using the single air pressure valve and supplied air pump. The design also allows for easy access to compression and rebound clickers.

Rear suspension

The KTM 85 SX boasts a WP XACT rear shock absorber with sophisticated PDS (Progressive Damping System). This design offers a high progression rate and an excellent response to uneven terrain - just like the bigger bikes. It also allows an impressive 305 mm of rear-wheel travel and is fully adjustable for preload, compression, and rebound.

Bringing this little screamer to a stop is down to the Formula brake system with radial calipers - four pistons in front, two in the rear - with lightweight Wave brake discs. The system is the benchmark in terms of controlled action and braking performance, ensuring powerful and confident braking.

The KTM 85 SX airbox is a masterclass in design, optimizing the tiny space available to deliver the best possible performance, while still maintaining the highest level of filter protection. The air filter is easily accessed, without tools, by removing the left side panel. The Twin Air filter and filter cage design feature a simple, secure mounting system, making filter maintenance quick and easy, which means less time in the pits, and more time winning races.

Holding approximately 5.2 liters of pre-mixed fury, the tank is perfectly shaped to be small and slim to allow for easy and uninhibited rider movement, while still providing enough range to cover a full race at full throttle.

03. Ergonomics & Comfort

Hang on tight - the KTM 85 SX features a strong, lightweight, tapered aluminum handlebar, with a specifically shaped bend to suit its overall ergonomics. Additionally, the bike comes standard with ODI lock-on grips, which include a vulcanized grip on the right side and a lock-on grip on the left that do not require glue or wire for mounting.

The KTM 85 SX has "no-dirt" footpegs, which have a simple but effective self-cleaning system that ensures the footpegs return to their original position, providing complete control in all conditions.

Providing the perfect blend of grip, durability and comfort, the 2024 KTM 85 SX seat does everything you'd expect it to, while showing off it's its undeniable READY TO RACE and 'orange' heritage.

04. Bodywork & Graphics

Rocking an all white and orange color plastics combination and orange seat cover - not to mention bold, black, orange and purple graphics - the 2024 KTM 85 SX lines up behind the gate with pure race-winning intent.

Technical Details

• Transmission 6-speed
• Starter Kickstarter
• Stroke 40.8 mm
• Clutch Wet, multi-disc clutch, Formula hydraulics
• Displacement 84.9 cm³
• EMS MEDJ digital
• Design 1-cylinder, 2-stroke engine
• Fuel-mixture generation Keihin PWK 28
• Weight (without fuel) 67 kg
• Tank capacity (approx.) 5.2 l
• Wheelbase 1290 mm
• Front brake disc diameter 240 mm
• Rear brake disc diameter 220 mm
• Front brake Disc brake
• Rear brake Disc brake
• Chain 1/2 x 5/16"
• Frame design Central double-cradle-type 25CrMo4 steel
• Front suspension XACT 43 WP Upside-Down fork, Ø 43 mm
• Handlebar Aluminium, tapered Ø 28/22 mm
• Rear suspension XACT WP PDS mono shock
• Seat height 850 mm
• Silencer Aluminium
• Steering head angle 66 °
• Rear subframe design Aluminium
• Suspension travel (front) 278 mm
• Suspension travel (rear) 305 mm
• Wheels Spoked wheels with aluminium rims

• KTM Manuals
• 85 SX 19/16 2017
• Owner's manual

KTM 85 SX 19/16 2017 Owner's Manual

• Setup instructions (15 pages)
• page of 98 Go / 98

Table of Contents

• Troubleshooting
• Means of Representation
• Symbols Used
• Formats Used
• Safety Advice
• Use Definition - Intended Use
• Degrees of Risk and Symbols
• Tampering Warning
• Safe Operation
• Protective Clothing
• Environment
• Owner's Manual
• Important Notes
• Manufacturer and Implied Warranty
• Operating and Auxiliary Substances
• Spare Parts, Accessories
• Customer Service
• View of Vehicle
• View of Vehicle, Front Left (Example)
• View of Vehicle, Rear Right (Example)
• Serial Numbers
• Chassis Number
• Engine Number
• Fork Part Number
• Shock Absorber Article Number
• Clutch Lever
• Hand Brake Lever
• Throttle Grip
• Kill Switch
• Opening the Filler Cap
• Closing the Filler Cap
• Shift Lever
• Kick Starter
• Foot Brake Lever
• Plug-In Stand
• Service Hour Counter
• Preparing for Use
• Advice on First Use
• Running in the Engine
• Preparing the Vehicle for Difficult Riding Conditions
• Preparing for Rides on Dry Sand
• Preparing for Rides on Wet Sand
• Preparing for Rides on Wet and Muddy Surfaces
• Preparing for Rides at High Temperature and Slow Speed
• Preparing for Riding at Low Temperatures or in Snow
• Riding Instructions
• Checks and Maintenance Work When Preparing for Use
• Starting off
• Shifting, Riding
• Applying the Brakes
• Stopping, Parking
• Service Schedule
• Additional Information
• Required Work
• Recommended Work
• Tuning the Chassis
• Checking the Basic Chassis Setting with the Rider's Weight
• Compression Damping of the Shock Absorber
• Adjusting the Low-Speed Compression Damping of the Shock Absorber
• Adjusting the High-Speed Compression Damping of the Shock Absorber
• Adjusting the Rebound Damping of the Shock Absorber
• Measuring Rear Wheel Sag Unloaded
• Checking the Static Sag of the Shock Absorber
• Checking the Riding Sag of the Shock Absorber
• Adjusting the Spring Preload of the Shock Absorber
• Adjusting the Riding Sag
• Checking the Basic Setting of the Fork
• Adjusting the Compression Damping of the Fork
• Adjusting the Rebound Damping of the Fork
• Handlebar Position
• Adjusting the Handlebar Position
• Service Work on the Chassis
• Raising the Motorcycle with the Lift Stand
• Removing the Motorcycle from the Lift Stand
• Bleeding the Fork Legs
• Cleaning the Dust Boots of the Fork Legs
• Removing the Fork Legs
• Installing the Fork Legs
• Removing the Fork Protector
• Installing the Fork Protector
• Removing the Lower Triple Clamp
• Installing the Lower Triple Clamp
• Checking the Play of the Steering Head Bearing
• Adjusting the Steering Head Bearing Play
• Greasing the Steering Head Bearing
• Removing the Start Number Plate
• Installing the Start Number Plate
• Removing the Front Fender
• Installing the Front Fender
• Removing the Shock Absorber
• Installing the Shock Absorber
• Removing the Seat
• Mounting the Seat
• Removing the Air Filter Box Cover
• Installing the Air Filter Box Cover
• Removing the Air Filter
• Cleaning the Air Filter and Air Filter Box
• Installing the Air Filter
• Sealing the Air Filter Box
• Removing the Main Silencer
• Installing the Main Silencer
• Changing the Glass Fiber Yarn Filling of the Main Silencer
• Removing the Fuel Tank
• Installing the Fuel Tank
• Checking for Chain Dirt Accumulation
• Cleaning the Chain
• Checking the Chain Tension
• Adjusting the Chain Tension
• Checking the Chain, Rear Sprocket, Engine Sprocket, and Chain Guide
• Checking the Frame
• Checking the Swingarm
• Checking the Routing of the Throttle Cable
• Checking the Rubber Grip
• Additionally Securing the Rubber Grip
• Adjusting the Basic Position of the Clutch Lever
• Checking the Fluid Level of the Hydraulic Clutch
• Correcting the Fluid Level of the Hydraulic Clutch
• Changing the Hydraulic Clutch Fluid
• Brake System
• Checking the Free Travel of the Hand Brake Lever
• Adjusting the Free Travel of the Handbrake Lever
• Checking the Brake Discs
• Checking Front Brake Fluid Level
• Adding Front Brake Fluid
• Checking the Front Brake Linings
• Changing the Front Brake Linings
• Checking the Free Travel of Foot Brake Lever
• Adjusting the Basic Position of the Foot Brake Lever
• Checking the Rear Brake Fluid Level
• Adding Rear Brake Fluid
• Checking the Rear Brake Linings
• Changing the Rear Brake Linings
• Wheels, Tires
• Removing the Front Wheel
• Installing the Front Wheel
• Removing the Rear Wheel
• Installing the Rear Wheel
• Checking the Tire Condition
• Checking the Tire Air Pressure
• Checking Spoke Tension
• Cooling System
• Checking the Antifreeze and Coolant Level
• Checking the Coolant Level
• Draining the Coolant
• Refilling Coolant
• Tuning the Engine
• Checking the Play in the Throttle Cable
• Adjusting the Play in the Throttle Cable
• Carburetor - Idle
• Carburetor - Adjusting Idle Speed
• Emptying the Carburetor Float Chamber
• Checking the Basic Position of the Shift Lever
• Adjusting the Basic Position of the Shift Lever
• Service Work on the Engine
• Checking the Gear Oil Level
• Changing the Gear Oil
• Adding Gear Oil
• Cleaning, Care
• Cleaning the Motorcycle
• Preparing for Use after Storage
• Technical Data
• Engine Tightening Torques
• Carburetor Tuning
• Shock Absorber
• Chassis Tightening Torques
• Auxiliary Substances
• List of Abbreviations

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Summary of Contents for KTM 85 SX 19/16 2017

• Page 1 OWNER'S MANUAL 2017 85 SX Art. no. 3213468en...
• Page 3 KTM accepts no liability for delivery options, devi- ations from illustrations and descriptions, misprints, and other errors.

Page 4: Table Of Contents

• Page 5 TABLE OF CONTENTS 11.30 Changing the glass fiber yarn filling of the 16 SERVICE WORK ON THE ENGINE ....... 75 main silencer ..........43 16.1 Checking the gear oil level ....... 75 11.31 Removing the fuel tank ........ 44 16.2 Changing the gear oil ........

Page 6: Means Of Representation

Page 7: safety advice, page 8: protective clothing, page 9: important notes, page 10: view of vehicle, page 11: view of vehicle, rear right (example), page 12: serial numbers, page 13: controls, page 14: closing the filler cap, page 15: choke, page 16: plug-in stand, page 17: preparing for use, page 18: running in the engine, page 19: preparing for rides on dry sand, page 20: preparing for rides on wet sand, page 21: preparing for rides at high temperature and slow speed, page 22: riding instructions, page 23: starting off, page 24: stopping, parking, page 25: refueling, page 26: service schedule, page 27: recommended work, page 28: tuning the chassis, page 29: adjusting the high-speed compression damping of the shock absorber, page 30: measuring rear wheel sag unloaded, page 31: adjusting the spring preload of the shock absorber, page 32: checking the basic setting of the fork, page 33: handlebar position, page 34: service work on the chassis, page 35: cleaning the dust boots of the fork legs, page 36: installing the fork legs, page 37: installing the fork protector, page 38: installing the lower triple clamp, page 39: checking the play of the steering head bearing, page 40: adjusting the steering head bearing play, page 41: removing the start number plate, page 42: installing the shock absorber, page 43: removing the air filter box cover, page 44: installing the air filter, page 45: removing the main silencer, page 46: removing the fuel tank, page 47: installing the fuel tank, page 48: checking for chain dirt accumulation, page 49: adjusting the chain tension, page 50: checking the chain, rear sprocket, engine sprocket, and chain guide, page 51: checking the frame, page 52: checking the swingarm, page 53: additionally securing the rubber grip, page 54: changing the hydraulic clutch fluid.

• Page 55 SERVICE WORK ON THE CHASSIS –  Fill bleeding syringe with the appropriate hydraulic fluid. Bleed syringe (50329050000) Brake fluid DOT 4 / DOT 5.1 ( p. 87) – On the clutch slave cylinder, remove bleeder screw  and mount bleeding ...

Page 56: Brake System

Page 57: checking front brake fluid level, page 58: checking the front brake linings.

• Page 59 Danger of accidents Brake linings which have not been approved alter the braking efficiency. Not all brake linings are tested and approved for KTM motorcycles. The structure and friction coefficient of the brake linings, and thus their brake power, may vary greatly from that of original brake linings.

Page 60: Checking The Free Travel Of Foot Brake Lever

Page 61: adjusting the basic position of the foot brake lever, page 62: adding rear brake fluid, page 63: checking the rear brake linings.

• Page 64 BRAKE SYSTEM Info Never use DOT 5 brake fluid. It is silicone-based and purple in color. Oil seals and brake lines are not designed for DOT 5 brake fluid. Avoid contact between brake fluid and painted parts. Brake fluid attacks paint. Only use clean brake fluid from a sealed container.
• Page 65 BRAKE SYSTEM –  Add brake fluid to level Brake fluid DOT 4 / DOT 5.1 ( p. 87) –  Mount the cover with the washer and membrane –  Mount and tighten screws Info Clean up overflowed or spilled brake fluid immediately with water. H01391-10...

Page 66: Wheels, Tires

Page 67: removing the rear wheel, page 68: checking the tire condition, page 69: checking the tire air pressure, page 70: cooling system, page 71: checking the coolant level, page 72: refilling coolant, page 73: tuning the engine, page 74: carburetor - idle, page 75: emptying the carburetor float chamber, page 76: checking the basic position of the shift lever, page 77: service work on the engine, page 78: adding gear oil, page 79: cleaning, care, page 80: storage, page 81: troubleshooting.

• Page 82 TROUBLESHOOTING Faults Possible cause Action – Engine overheats Damaged cylinder head or cylinder Check the cylinder head and cylinder head gas- head gasket ket. – Bent radiator hose Change the radiator hose. – Incorrect ignition point due to loose Adjust the ignition. stator –...

Page 83: Technical Data

Page 84: carburetor, page 85: carburetor tuning, page 86: capacities, page 87: tires, page 88: chassis tightening torques, page 89: substances.

• Page 90 SUBSTANCES Shock absorber fluid (SAE 2.5) (50180751S1) Standard/classification – SAE ( p. 91) (SAE 2.5) Guideline – Use only oils that comply with the specified standards (see specifications on the container) and that exhibit the corresponding properties. Super unleaded (ROZ 98 / RON 98 / PON 94) Standard/classification –...

Page 91: Auxiliary Substances

• Page 92 AUXILIARY SUBSTANCES Universal oil spray Recommended supplier Motorex ® – Joker 440 Synthetic...

Page 93: Standards

Page 94: list of abbreviations, page 95: index.

• Page 96 INDEX Front fender Rear wheel installing ....... . . 39 installing .
• Page 97 INDEX Throttle cable play adjusting ....... . . 71 checking ....... . . 71 Throttle cable routing checking .
• Page 98 *3213468en* 3213468en 03/2016 KTM Sportmotorcycle GmbH 5230 Mattighofen/Austria Photo: Mitterbauer/KTM http://www.ktm.com...

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2018 KTM 85 odd sag recommenation

By Jasons , July 3, 2017 in Motorcycle Suspension

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I just picked up a 2018 85SX for my son this weekend. He loved the bike and even though he is small for it. I am not sure how much he will want to ride his 65 now. He was jumping everything that he does on the 65 in a couple of laps on the bike so he was definitely comfortable. It seems to have a little bit of a kick in breaking bumps and acceleration bumps, otherwise looks good. My question is around sag setting and spring selection. Stock is a 4.0 spring and the manual says it is good for 99-121 lbs. And 3.5 for less than 99lbs. Geared up weight. He is 11 and weighs 65 lbs with no gear so I figure 75 with gear(need to weigh his gear) So I put on a 3.0. I also have a 3.5 to try.   KTM recommends 120 sag and 30 free. This seems odd for 305mm travel (I would expect more like 101-102). Last year they recommended 100mm for 300mm travel which seems to make sense. For '18 they have 10mm more front travel, 5mm more rear travel and the shock is laid down 3 degrees, steering angle is the same so I would expect same or less sag recommended. They also have HS compression settings backwards in the manual, so maybe a typo, 120 vs 102. With the 3.0 and 120 sag we had 45 free which would indicate he needs a lighter spring. I had the forks set at the lowest pressure 58psi (stock is 73psi) Air fork on the 85 this year. I took it for a spin and it felt way soft in the rear compared to the front. I am way too heavy, but thought it would feel soft but balanced, maybe my height put me toward the back.  Thinking to try the 3.0 at 102 sag and see if that gives 30 free and then choose up or down on the spring rate based on normal more free-ligher spring, less free-heavier spring.   As usual for me this is way long, so my question is... Does anyone have any technical reason they would recommend so much sag? Thanks, Jason

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I think it's a typo

• My Rides (2)

Ball park starting static sag is 10%, race sag is 25%. So 300MM travel is 30mm static and 75+mm race. Then you adjust/change to suit the rider. some like the numbers flopped all about. I suggest keeping an eye on the shock and see if he bottoms, if he does, try the 3.5. I'd keep static at the 10% area and adjust the race to suit.  

My Wp spec sheet says 120mm with 30 static, that's from the factory.

Thanks for the replies, they seem to align with what I was thinking.  

Karlace, that is what my manual says too, it just seems way out from everything else I have seen and experienced.  120 mm puts the sag at ~40% and there isn't anything else about the chassis that I can find that would suggest such an extreme setting.

I've seen ktm recommend 90mm of sag on a big bike, they are sometimes a tad crazy

With that much sag, it sounds like stiffer springs are needed. It is more then likely they could be "off" by 1-2 spring rates rather then the 120mm being wrong. PDS on big bikes is around 112-116.

• 4 months later...

On 7/4/2017 at 10:22 AM, Jasons said: Thanks for the replies, they seem to align with what I was thinking.     Karlace, that is what my manual says too, it just seems way out from everything else I have seen and experienced.  120 mm puts the sag at ~40% and there isn't anything else about the chassis that I can find that would suggest such an extreme setting.   Jason

Did you ever sort this out on the bike?

The sag measurement seem way off with 120mm rider sag. The bike does not feel balanced

texasthierry

Just picked a 50SX 2018 for the little one and KTM recommends 80mm of SAG so the same 43% of travel...I don't know what was recommended in 17 (same chassis) but it seems to be a lot. Looks like a new engineer figured out something different...or made a mistake !

We are running 120mm.  He was complaining the bike was twitchy and got headshake with less sag.  I talked with a guy from KTM at a WORCS race that does the training for service and asked if it was a misprint and he said it wasn't and that they do a lot of testing to come up with the settings.  

14 hours ago, Jasons said: We are running 120mm.  He was complaining the bike was twitchy and got headshake with less sag.  I talked with a guy from KTM at a WORCS race that does the training for service and asked if it was a misprint and he said it wasn't and that they do a lot of testing to come up with the settings.  

Thanks for that we'll aim for 30mm and 120mm.

Just one more question the manual has the high speed compression as softer the further it is wound in, I've not seen this before as it's normally the other way round.

Did you find this to be accurate?

It seems to have the comfort, sport and standard settings backwards.   It also states turn in for more damping and out for less.  I would start with the standard setting and try in and out and see if he likes it better.

U do turn in for more damping 

• 3 years later...

On 11/15/2017 at 3:50 AM, gasgasser said: Thanks for that we'll aim for 30mm and 120mm.

Wondering what your thoughts were with this setup?  How'd it work for y'all?

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2012 KTM 85SX 17/14

Back to 2012 KTM Motorcycle Model Review Page

Click photos to enlarge. They make great desktop images.

– 2012 KTM 85SX 17/14

2012 KTM 85SX 17/14 Review

The full-size pro-bike

No absolute beginners are to be found pootling around among the ranks of ambitious, young MX riders any more. This is where future champions fight for victory and the best chance for a place on the podium is on the 85 SX – as demonstrated convincingly by Henry Jacobi’s 2010 world championship title. The 85 SX masters the toughest MX tracks with unperturbed ease. The grown-up KTM mini-crosser combines fully-fledged MX technology with perfect controllability.

2012 KTM 85SX 17/14 Features and Benefits

New for 2012:

» Reworked 43 mm USD front fork made by WP (215 mm travel) » New 2-component handlebar grips » New, lighter CNC machined front hub » New front axle (22 instead of 17 mm) » New handlebars made by Renthal » New radially mounted 4-piston front brake calliper » New wheels with aluminum spoke nipples » New graphics

Engine with 6 gears and intake and exhaust control

The 85 SX’s sensational engine delivers its power over a wide rev range thanks to its intake membrane and intricate exhaust control. The six-gear transmission always has the right gear ratio available. No coincidence that the 85 SX is the king of holeshots in junior MX race series.

Frame, wheels and suspension components

The 85 SX’s lightweight and sturdy chassis consisting of a chrome-molybdenum steel frame with bolted-on aluminium subframe, 43 mm (1.69 in) fully-adjustable, upside-down fork from WP now with optimised tuning and WP PDS shock absorber featuring adjustable rebound and compression damping, masters even the toughest of MX courses without demanding too much of the rider.

Focussing on optimisation of braking power and application, the front brake on the 85 SX has been equipped with a newly developed, radially mounted, four-piston brake caliper from Formula. In conjunction with the wave brake disc, the performance of the brake system has been improved even further.

The 85 SX’s sensational engine delivers its power over a wide rev range thanks to its intake membrane and intricate exhaust control. The six-speed transmission always has the right gear ratio available. No coincidence that the 85 SX is the king of holeshots in junior MX race series.

Focussing on optimisation of braking power and application, the front brake on the 85 SX has been equipped with a radially mounted, four-piston brake caliper from Formula. In conjunction with the wave brake disc, the performance of the brake system has been improved even further.

2012 KTM 85SX 17/14 – International Specifications MSRP Price: See KTM dealer in your country for pricing.

Engine Engine type Single cylinder, 2-stroke Displacement 84.9 cc Bore/stroke 47/48.95 mm Starter Kickstarter Carburetor Keihin PWK 28 Control Rotation speed dependent exhaust flap Lubrication Mixture lubrication 1:40 Transmission 6 gears Gear ratios 11:29 14:28 16:26 19:26 21:25 20:21 Primary ratio 19:66 Final drive 14:49 Cooling Liquid cooling Clutch Wet multi-disc clutch, hydraulically operated Ignition Moric digital 2M1 Chassis Frame Double grinded central double-cradle-type frame Subframe Aluminium Handlebar Renthal, Aluminium Ø 22 mm Front suspension WP Upside-Down Ø 43 mm Rear suspension WP-PDS mono shock Suspension travel front/rear 270/300 mm Front brake Disc brake Ø 220 mm Rear brake Disc brake Ø 210 mm Front/rear rims 1.60 x 19″; 1.85 x 16″ Alu Front/rear tires 70/100 x 19″; 90/100 x 16″ Chain 1/2 x 5/16″ Silencer Aluminium Steering head angle 66° Wheel base 1,290 mm ± 10 mm Ground clearance 377 mm Seat height 900 mm Tank capacity ca. 5 Liter Weight (ready to race) approx. 69 kg (without fuel)

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