Gearbox sprocket nut upgrade. Made from Stainless steel & has an oil seal fitted that seals on the gearbox mainshaft, this helps prevent oil leaking when bike is on the side stand, a common problem on BSA pre-unit twins and singles.
Nut is hexagonal so can be easily tightened and torqued up using a socket, comes with a lock tab washer, picture shows two nuts for illustration purpose only, 1 x nut and 1 x tab washer is supplied. See the second picture showing nut fitted to gearbox.
Fits BSA Pre-unit swingarm models A7 A10 B31 B33 Gold Star etc.
Please note item does NOT fit Plunger and Rigid models twins and singles.
Postage saving! if you want to buy more than one item, to
save on the postage, please put all the items you want in your shopping basket,
do not pay for them, then select the option “ Request total from seller” I will
then work out a combined shipping cost and send you a payment request for a
combined total, that will save you money.