【运输】通过有涂层的凸轮或球体驱动的锁定机械【运输】倒轮闸制动周期

back-pedal brake with cams for cycles

free-wheel back-pedal brake

back-pedal brake

back-pedal cycle

back-pedal brake with rollers for cycles

shoe brake, back-pedal, disc brake

back-pedal brake with balls for cycles

back-pedal brake, cycle