Triumph 650 ’66-72 & 750 ’73-76 Unit ’66-72 BSA A50 A65 Main Bearing RHP MRJA 1 1/8″ CN PN# 70-2879 CN E2879 68-0625


Out of stock

Add to Wishlist
Add to Wishlist


Top quality RHP left (primary) side main bearing as fitted to Triumph 650 1966-72 & 750 1973-76 unit twins & 1966-1972 BSA A50 & A65 unit twins in CN (clearance normal) clearance. CN bearings are tighter than C3 and not as tight as C2. These were standard in BSA unit applications as well as many Triumph 750s. Triumph 650 twins generally were fitted with CN clearance, and to add to the confusion late T140s were fitted with C2 clearance bearings.

Always check the clearance specs for your make and model to prevent damage! Bottom line is that after 40+ years of wear and tear many engines now need different clearance bearings than they originally came with!

For this bearing in C3 condition click here

For this bearing in C2 condition click here

For the ball bearing companion to this bearing click here

Please note: Due the nature of the product, we unfortunately do not accept returns on bearings, service tools or electrical components. Please be confident about your purchase before ordering. If you have questions, please contact us.

You may also like…

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.