Feked Classic Bike Parts
The Old Racing Stables, Nine Yews, Cranborne, Dorset BH21 5PW, UK
BSA Crankshaft Timing Side Pinion Drive Nut - A50, A65, A7, A10 Models - LH Thread
Half time pinion gear locknut as used on all BSA A50/A65 models from 1962-72 + A7/A10 pre-unit models circa 1947-63.
9/16" x 20 TPI - left hand thread
OEM: 67-0643, 67-643
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