BSA B25, B40, B44, C15 Crankshaft Shim Set OEM: 70-3904
BSA B25, B40, B44, C15 Crankshaft End Float Shim Set. Add Us To Favourites. OEM: 70-3904. FRONT FORKS & FIXINGS. SHOCK ABSORBERS & COVER SETS. Set has 5 shims, Thickness: 1 x 0.003" 1 x 0.005" 1 x 0.010" 1 x 0.015" 1 x 0.030".