BSA Unit Singles Mainshaft Ball Bearing (1) - 70-8151 - TR25W / B25 / C25 / B44 / B50 Hornet *****Always check your parts book

*****Always check your parts book to ensure that this set will fit your application

Malfunctioning

Did your fork boots fall apart

M Part number is 57-3762 or T3762

Cyclone Spitfire

BSA Unit Singles Mainshaft Ball Bearing (1) - 70-8151 - TR25W / B25 / C25 / B44 / B50 Hornet *****Always check your parts bookNew! BSA & Triumph Unit Singles Mainshaft Ball Bearing. Looking for a High Quality Bearing that you can trust and rely on? Well this is Exactly you need! Don't Skimp on your Engine! Do it right the First Time! Fits BSA Unit Singles (C15, B40, B44, C25, B25, TR25W Trophy, B25SS, B50, TR5MX & B50MX) from 1965 1973. Also fits various BSA C11 & C12. Norton 18, ES2, Dominator & Commando. Please refer to your parts catalog for proper fitment. O. E. M Part