Transmission hub with pedal shaft running through it axially has sunwheel and/or hollow wheel coupled to axial freewheeling device

摘要

The transmission hub has a pedal shaft (10) passing through it. By combining an axial freewheeling device with the sunwheel (3) as a single component, fewer components are needed. The planetary gear wheels (4) also serve to enable the sunwheel to be displaced axially. the hub is suitable for all bicycles in which the pedal shaft passes through the driven wheel.