The Sliding gear 27 teeth made of white plastic is a piece of transmission of origin manufacturer (Original Rotax Racing). This technical gear settles inside the bas-engine to ensure the synchronized connection between the crankshaft and the balancing tree (pendulum) on all the engines of the range Rotax 125 Max (Junior, Senior, Master, DD2).

Designed in high-density white technical plastic lubricated by box oil, this gear fills an essential mechanical shock absorber role. The use of the polymer makes it possible to significantly reduce the operating noise of the motor and absorb high speed transmission micro-shocks, thus protecting the movable crew of the spurious vibrations. With its 27 teeth Perfectly calibrated, it guarantees a balancing distribution timing of absolute accuracy.