KTM 85 SX 17-14 - 2010 Specifications and Reviews

The 2010 KTM 85 SX 17/14 is a lightweight minibike designed for young riders progressing through youth motocross competition. Powered by a liquid-cooled 84.9cc two-stroke engine with a six-speed transmission, it delivers sharp acceleration and agile handling ideal for small tracks and training environments. Known for its nimble performance and reliable KTM engineering, this bike excels in developing rider skills and confidence.

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General information

CategoryMinibike, cross
Year2010
ModelKTM 85 SX 17/14

Engine and Transmission Specifications

Exhaust systemAluminium
ClutchWet mDouble disk clutch, operated hydraulically
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemMixture oil lubrication 1:40
IgnitionMoric digital 2M1
Fuel systemCarburettor. Keihin PWK 28
Bore x stroke47.0 x 49.0 mm (1.9 x 1.9 inches)
Engine typeSingle cylinder, two-stroke
Capacity:84.90 ccm (5.18 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter200 mm (7.9 inches)
Rear brakesSingle disc. Bremo
Front brakes diameter220 mm (8.7 inches)
Front brakesSingle disc. Bremo
Rear tyre dimensions90/100-14
Front tyre dimensions70/100-17
Rear suspension travel300 mm (11.8 inches)
Rear suspensionWP PDS mono shock
Front suspension travel280 mm (11.0 inches)
Front suspensionWP USD 43 mm fork
Trail220 mm (8.7 inches)
Rake (fork angle)24.0°
Frame typeDouble grinded central double-cradle-type frame
 
 

Physical measures and capacities

Fuel capacity5.00 litres (1.32 gallons)
Wheelbase1,290 mm (50.8 inches)
Ground clearance385 mm (15.2 inches)
Seat height845 mm (33.3 inches) If adjustable, lowest setting.
Dry weight66.0 kg (145.5 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsOrange
StarterKick

Performance Profile & Rider Fit

29 hp
Peak Power (est.)

Best For

Track6%
City5%
Cornering10%
Daily Riding4%
Touring2%
Passenger0%

Rider Profile

Best ForFor young or lightweight racers progressing beyond minis; demands competent throttle and clutch control to manage its peaky two-stroke power.
PurposeA dedicated youth motocross racer built for closed dirt circuits, jumps and berms — pure competition, not transport.
Rider FitTiny and feather-light with a 750mm seat, 280mm ground clearance and long-travel WP suspension; sized for smaller riders on 17/14 wheels.
CharacterSharp, revvy and aggressive — a snappy liquid-cooled two-stroke that rewards commitment with explosive acceleration and razor agility.
Not Ideal ForNot for road use, commuting, touring or passengers; no lights, kick-start only, knobby tires and race-only intent make it street-illegal.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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