Shop/Category/Fig. 30 — A70 MODEL — Except for the following, all other items are as A65 Lightning/BSA Piston complete (·020" oversize)
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| Diagram | Fig. 30 — A70 MODEL — Except for the following, all other items are as A65 Lightning · ref 18 |
| Listed in parts books | 1972 |
BSA Piston complete (·020" oversize)
Complete .020 in. oversize piston listed for the BSA A70, called out as different from the shared A65 Lightning parts.
PN · 71-2884
This is a complete piston listed at .020 inch oversize, meant for a rebore job where the cylinder bore has already been taken out to that size. The catalog entry ties this part to the A70 model, noting it shares most components with the A65 Lightning except for a handful of listed differences - this piston being one of them.
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