At the heart of the 2016 OSSA TR250I trial motorcycle, OSSA pairs a 249.2 cc (15.2 cu in) liquid-cooled single cylinder, two-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 72.5 x 60.0 mm (2.9 x 2.4 inches).
On the scales, the TR250I measures 64.5 kg (142 lbs) dry. Rider ergonomics and chassis geometry center around a 655 mm (25.8 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,328 mm (52.3 in) wheelbase engineered for quick, flickable steering geometry. The 2.6-liter (0.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
655 mm (25.8 in)
Engine
Displacement249.2 ccm (15.21 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Bore x Stroke72.5 x 60.0 mm (2.9 x 2.4 inches)
Fuel SystemInjection
IgnitionKokusan CDI digital magnetic flywheel
LubricationMix 0.9% 100% synthetic oil
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchHydraulic control
Chassis
Frame TypeTubular profile CR-Mo steel with pipe and forged aluminum lower
Front SuspensionFork with aluminum bars, 40 mm diameter Marzocchi adjustable compression and rebound
Rear SuspensionVariable progressive system with shock absorber Ohlins TTX adjustable compression and rebound
Wheelbase1328 mm (52.3 inches)
Ground Clearance340 mm (13.4 inches)
Wheels & Brakes
Front BrakesSingle disc. Four-piston calipers.
Front Brake Ø185 mm (7.3 inches)
Rear BrakesSingle disc. Two-piston calipers.
Rear Brake Ø150 mm (5.9 inches)
Dimensions & Weight
Dry Weight64.5 kg (142.2 pounds)
Seat Height655 mm (25.8 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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
