Parts and Accessories for Vintage British and European Motorcycle
Fits: All BSA M20, M21, B31, B32, B33, B34, A7, A10 and Goldstar with plunger frame.
Total length: 6 1/4″
Outside diameter: 1 1/8″
Thickness of coil: 3/16″ (4mm)
Part number: 89-4259