BSA TRIUMPH PRE-UNIT 500 650 CLUTCH BASKET CHAIN WHEEL 57-1549, T1549, 57-0940

This is a brand new single clutch chain wheel drum with 43 teeth.

Fits: Triumph pre-unit 500, 650 up to1962
BSA A10 from 1960-63

Part # 57-1549, T1549, 57-0940, T940, 42-3266, 57-0985, T985