| Diagram | Fig. 30 — A70 MODEL — Except for the following, all other items are as A65 Lightning · ref 14 |
| Listed in parts books | 1972 |
BSA Bolt — connecting rod
Connecting rod bolt for the BSA A70 model, cataloged as an exception to the A65 Lightning parts commonality.
This is a connecting rod bolt listed under BSA part number 71-2690. The catalog entry ties it to the A70 model, noted in the parts book as sharing most components with the A65 Lightning except where specifically called out — this bolt appears to be one of the exceptions.
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A connecting rod bolt secures the rod cap to the connecting rod itself, clamping around the crankpin journal. It's a fastener that sees a lot of cyclic stress every time the engine turns over, so it's not a part to reuse carelessly once it's been through a rebuild.
Our record on this one is brief — just the one catalog appearance tied to the A70 figure. If you're sourcing this for a rebuild, confirm fitment against your specific engine before ordering.
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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