Allows you to maount the pinion fixed gear and freewheel
Wight 1880 gr. (front) 1890 gr. (rear)
Pinion NOT INCLUDED
The flip-flop hub is a hub with thread on both sides so that the fixed sprocket can be mounted on one side while the classical freewheel is mounted on the other side and can be used simply by disassembling and reversing the wheel.