In addition to the 125cc standard cylinder kit, Airsal also offers a T6 racing version. The main difference of the T6 compared to the 125cc standard cylinder is the improved piston, which significantly changes the combustion chamber geometry and the compression of the engine. Especially the torque of the engine is increased by 10-20% by this cylinder. The power output increases by about 1 HP depending on the exhaust system used, so the power output can be increased by about 2-3 HP.
Since the engine retains its 125cc displacement, no further adjustment is necessary with injection systems. For vehicles with carburetor, the mixture should be checked by the colour of the spark plugs. If necessary, the carburettor must be changed.