Rotationstopper - Sunstar iBike

grabcad

This is my proposal for the Sunstar iBike Rotationsopper challenge. Stopper is located front of the motor. It's attached to bikes frame by tightening arm and plate around bikes tube. Arm and tightening plate have soft cushions which prevents scratches and provide better grip. After installing the stopper, plate is easy to tighten without tools by turning the knob in front of the motor.