Triumph / BSA Crankshaft Bearing (C3) - 70-8003 - C15 / B40 / B44 / TR25W Nacelle First kit will fit Triumph

First kit will fit Triumph front and rear master cylinders as well as Norton Commando rear master cylinders - the second kit will fit Norton Commando front master cylinders only

06-3283 or 06-5115

Fits BSA C15 & B40 models on the drive side from 1959-1966

Not sure what Thread Pitch they are

Triumph / BSA Crankshaft Bearing (C3) - 70-8003 - C15 / B40 / B44 / TR25W Nacelle First kit will fit TriumphTriumph & BSA Unit Singles Crankshaft Ball Bearing. You will get the one bearing as pictured. Looking for the best quality bearing you can buy for your Triumph or BSA unit single? Well you have found it. Bearing has the correct C3 internal clearance! Measures 25mm X 62mm x 17mm! Fits Triumph & BSA Unit Singles on the timing side (C15, C25, B25, B40, B44 & TR25W Trophy) from 1967 1971. Fits BSA C15 & B40 models on the drive side from 1959 1966. Also