PLEASE NOTE: Delays in processing. Orders placed between Thursday 11 April and Wednesday 1 May will be processed 02 May.
Rear sprocket for BSA swing arm, 4 stud QD, full width, swing arm, bolt on 42T, 5/8 x 3/8in chain. Attaches to rear hub /brake drum. Original part number: 4230-56 - sprocket 47T