Gallery

Frame repair

This frame had been damaged by tightening the seat clamp bolt too tightly. Repaired like this.

Before After

 

SON 28 hub dynamo bearing replacement

The manufacturer doesn't want you to know how to do this.

 

Crank pedal thread repair

Occasionally, the thread in a crank becomes damaged. The repair method is to enlarge the pedal hole and tap a new, larger, thread in it. A thin steel bush is then screwed and thread-locked in place, creating a thread that is stronger than the original.