| Diagram | Fig. 30 — A70 MODEL — Except for the following, all other items are as A65 Lightning · ref 3 |
| Listed in parts books | 1972 |
BSA Shell bearing — connecting rod big-end (standard)
Standard-size big-end shell bearing for the BSA A70/A65 Lightning connecting rod, PN 71-2692.
This is a big-end shell bearing for the connecting rod, standard size, listed under BSA part number 71-2692. The catalog entry ties it to the A70 model, with a note that most other items on that machine follow the same parts as the A65 Lightning. That makes this a BSA part, not a Triumph one, so if you're working on a Triumph twin this isn't your bearing.
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A shell bearing like this sits between the connecting rod and the crankpin, taking the load as the rod spins with the crank. It's a wear item that gets checked and often replaced during a bottom-end rebuild.
Our record on this one is thin — just the one catalog listing tied to the A70/A65 Lightning family for 1972. If you're not sure this is the right bearing for your engine, give us a call and we'll confirm before you order.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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