Engineered by Ktm for the cross - motocross motorcycle segment, the 2019 Ktm 85 SX relies on a 84.9 cc (5.2 cu in) single cylinder, two-stroke powerplant. Internal engine geometry specifies a bore and stroke of 47.0 x 49.0 mm (1.9 x 1.9 inches).
On the scales, the 85 SX measures 68 kg (150 lbs) dry. Rider ergonomics and chassis geometry center around a 890 mm (35 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control. The 5.2-liter (1.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Ktm archive, this model family spans 4 indexed model years from 2003 to 2019, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
890 mm (35 in)
Engine
Displacement84.9 ccm (5.18 cubic inches)
Engine TypeSingle cylinder, two-stroke
Bore x Stroke47.0 x 49.0 mm (1.9 x 1.9 inches)
Transmission
Final DriveChain (final drive)
ClutchWet
Chassis
Frame TypeCentral-tube frame with double-cradle
Front SuspensionWP upside-down Ø 43 mm
Rear SuspensionWP monoshock
Ground Clearance362 mm (14.3 inches)
Wheels & Brakes
Front BrakesSingle disc
Front Brake Ø240 mm (9.4 inches)
Rear BrakesSingle disc
Rear Brake Ø210 mm (8.3 inches)
Dimensions & Weight
Dry Weight68.0 kg (149.9 pounds)
Seat Height890 mm (35.0 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
