#365daysofbiking Spring has sprung:

September 13th – Spotted in a customer’s bike shed, and improvised, clever repair to a brake calliper with a broken return spring.

The return spring – present in some form in nearly every type of brake – forces the brake off once the lever is released.

Since the brake cable pulls the yoke awards the cable end stop to engage the disc brake fitted here, forcing the two apart will duplicate the effect of releasing the brake as performed normally by a return spring. The spring has clearly broken and instead of replacing the whole calliper, the owner has released the cable, threaded on a very stiff spring and re-assembled the cable. The cable retains the spring and the brake operates as normal.

Clever. I’m impressed.