Bicycle drive arrangement

Bicycle drive arrangement mainly includes frame (3), transmission (18), installs at the epaxial drive rear wheel (15) of gearbox output, installs freewheel clutch (38) on transmission input shaft and install the drive arrangement on frame (3), its characterized in that: drive arrangement also including having add link drive spare (10), the running -board driving piece is mainly by drive wheel (four to six -tenehs) and fix and constitute in drive wheel driving piece (20) of drive wheel (four to six -tenehs) below, and a set of drive arrangement is all installed respectively to the both sides of frame (3) between every running -board (1) and transmission (18), stand when two running -boards of bicycle are trampled as the user, just can drive four sets of drive arrangement drives of every running -board both sides simultaneously, thereby the drive connecting rod of the bicycle of the chinese patent no. 201420590209.3 adopts unilateral wall scroll structure, user because drive connecting rod pulling is unilateral atress when stepping on the treadle drive among the solve prior art, cause the freewheel clutch atress inhomogeneous, split very easily, shortcoming such as very not durable, consequently, even, the will not fracture, very durable of this bicycle drive arrangement's freewheel clutch atress, and trample very light and steadily.