
The 2011 OSSA TR 280i - In stock now!
OSSA has developed a trial bike, based on a new, highly innovative concept.
They have basically worked on redistributing the various parts of the bike logically in terms of the weight distribution and other conditioning factors such as some of the parts’ running temperature.
One of these aspects is locating the filter box in a very high, easily-accessible position.
Parts such as the fuel tank, air filter box and radiator have been positioned with the needs of a trial bike in mind. This has been done rationally, with common sense and a clear objective: to make the new OSSA TR 280i a benchmark for this speciality, just as the first MAR – Mike Andrews Replica – was in 1972.
"Having the air filter at the bottom of a trial bike with the fuel tank high up or located next to the exhaust are concepts that do not make sense from our point of view" says Xiu, the project manager.
The fact that the new TR 280i has an electronic-injection system has enabled its engineers to redistribute various parts without being constrained by the position of the traditional carburettor.
“Sometimes the injection system has been put in the same place as the carburettor would have gone, with the fuel tank at the top of the bike, without considering the option of finding a new position for it. OSSA Factory let me start from scratch and that was a determining factor in taking on this project” said Xiu.

Technical Specs
Engine
- Capacity 272.2 cc
- Type Two-stroke single cylinder with a reed intake directly into the
- crankcase
- Liquid Cooling
- Bore x Stroke 76x60 mm
- Fuel Supply EFI Kokusan Battery-less System
- Ignition CDI Kokusan digital magnetic flywheel
- Clutch Hydraulic control
- Gear box 6 speed
- Transmission Primary through gears, secondary by chain
Chassis
- Type CR-MO steel tube profile with pipe and bottom made of cast aluminium
- Front suspension Marzocchi upside-down adjustable fork, 40 mm diameter
- Optional conventional Marzocchi 40 mm aluminium
- Rear suspension Variable progression system with TTX OHlins monoshock
- Front brake 185 mm diameter disk with four-piston calliper
- Rear brake 150 mm diameter disk with two-piston calliper
- Tank capacity 2.5 litres
- Dry weight 64 Kg
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