BSA WD M20 Single-Spring Clutch Tool

The WD M20 uses a strong single-spring, multi-plate dry clutch. This workshop tool makes compressing and fitting the spring considerably easier.

Model: WD M20
Archive type: Video
Published: 22 Aug 2018

Hands using a simple screw tool to compress the spring on a BSA clutch. — The workshop-made tool in use on the clutch assembly.

A practical fitting tool

The WD M20 clutch is a single-spring, multi-plate dry clutch first used on the Empire Star models. Its spring is very strong, making installation a real challenge without the correct tool.

The short workshop video demonstrates a simple tool that makes compressing and fitting the spring considerably easier.

Hands using a screw tool on a BSA clutch.