BSA Unit twins and singles crinkle rear hub. Very good condition This is the 1966 ,on version with left hand threads. The hub and the Speedo drive end plate have been powder coated. Bearings are sound and nicely run in. Rubber buffer on the drive end could do with replacing. All shims are fitted and both threads are good. All you have to do is spoke it. Disposing of mainly BSA Unit parts accumulated over 50 years, keep your eye out for other listings with some really good stuff. No returns please.