BSA Crankshaft Alternator Rotor Nut by CBS - (1) - 29-2023 Sealed Considering the price of Renold

Considering the price of Renold chains

Replaces part number 70-1596

Click here to purchase a set of Cadmium plated "flat-head" screws to replace the Allen head cap screws

to adapt and fit a bulb to your Speedo / Tach

BSA Crankshaft Alternator Rotor Nut by CBS - (1) - 29-2023 Sealed Considering the price of RenoldFor the past few years we had had issues with finding BSA crankshaft rotor nuts that actually fit. We have encountered rotor nuts that were too small and too large with the incorrect thread specifications Not only are some rotor nuts made incorrectly, but BSA changed the nut "specification" without changing the part number! From what we know, there was a spec change on the rotor that happened around 1968ish Early types where 5 8" X 20 TPI (British)