Clutch Cups, BSA A7, A10, B31, B34, M20/21 Swinging Arm, 66-3781, 6 spring clutch
A set of six clutch cups suitable for all post war BSA single and twin cylinder models using the 6 spring clutch.
Suitable for the following motorcycles:
BSA A7 and A10 1954-59 (swinging arm)
BSA M20 and M21 1949-58
BSA B31, B32, B33, B34 1949-60 (Including Goldstars)
Outer Diameter: 14.2mm
These are quality products made in the UK.