BSA UNIT SINGLE CLUTCH CHAIN WHEEL C15 C25 B25 B40 B44 B50 TR25W T25SS TR5MX

This is a brand new duplex clutch chain wheel drum with 52 teeth.

Fits: BSA single unit C15, C25, B25, B40, B44, B50 and Triumph TR25W, T25SS, TR5MX.

Part # 57-4198, 40-3203, 57-4303