Transmission device for cycles a motor, comprising a main transmission and a secondary transmission

摘要

Transmission device for cycles a motor, comprising a main transmission and a secondary transmission. / p & & p & it comprises a main casing 2 is secured to a casing of a crankshaft 1, a secondary housing 11 is provided at the back of the main casing 2, a main transmission tm rise in the main casing 2, a secondary transmission ts rise in the secondary casing 11 and functionally connected to said main transmission and the means serving to connect said secondary transmission ts has a rear wheel w of the cycle, the secondary transmission and the said means being disposed on either side of this wheel back.