BSA Primary Chaincase Gasket Cork B31/B32/B33/B34/C10/C11/M20/M21/M33

66-7514. 66-3074

suitable for:

BSA B31/B32/B33/B34/C10/C11 1949-53

M20/M21/M33

Primary Drive

Rigid and Plunger Mod.

Metal Chaincases

Dynamo Mod. 1937-57

Made in England

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