DRIVE TRAIN COMPRISING TWO SEPARATE SHIFTABLE GEAR MECHANISMS WHICH ARE COUPLED BY MEANS OF INTERMEDIATE GEAR MECHANISMS

摘要

The invention relates to a drive train for muscle-operated single or multi-track vehicles, comprising a crank-driven bottom bracket mechanism which is connected on the output side to a chain drive or belt drive, from which a chain or belt can be fed directly or shiftably to a pinion of a rear wheel hub, wherein in the drive train except in the bottom bracket mechanism, which is designed as a primary shift transmission (G01) with n gears or with variable transmission ratio, a secondary mechanism (G02) is arranged as a shiftable rear wheel hub mechanism with m = two or m = three gears, wherein n and m are natural numbers. According to the invention, in the drive train except in the bottom bracket mechanism which is designed as a primary shift transmission (G01) with n gears, a secondary mechanism (G02) is arranged as a shiftable rear wheel hub transmission with m = two or m = three gears.