Eccentric crank

When you have limitation in the knee or hip, for example a limited ability to bend your leg (max. 45 degrees), an eccentric crank will allow you to make a different rotation movement with this leg, while the other one continues to make a regular pedal movement. This way your complaint will no longer impede your ability to cycle. Here you can download the order form for an Excentric Crank from Van Raam.
 

Excentrische crank van Raam fiets