BSA Rear Spindle Distance Collar - A and B Group - Full Width Cast Iron Hub + A50/A65 Alloy Hub Models
Correct fitment on swinging arm A7 and A10 models from 1958-63 + B31 and B33 models from 1958-59.
Plus earlier A50 and A65 models with alloy full width rear hub - circa 1962-65.
Width: 7/16" (11.5mm)
OD: 2" (50.2mm)
ID: 13/16" (20.7mm)
OEM: 42-6324, 68-6015
Made in England