| Listed in parts books | Not catalogued by year yet |
PISTONS BSA A10 8.25 +060
BSA A10 piston, 8.25 compression, .060 oversize.
This is a piston for the BSA A10 engine, listed at .060 oversize with an 8.25 compression ratio. It's not a Triumph part, and the manufacturer code attached to this listing is off — Amal makes carburetors, not pistons — so don't read anything into that tag. The catalog description is the reliable part here.
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We don't have much more on file for this one beyond the basic spec in the description. If you're rebuilding an A10 top end and need to confirm bore size, ring pack, or piston crown shape against what's actually in your cylinders, give us a call before ordering.
As always with oversize pistons, the .060 designation only matters if your cylinders have actually been bored to match. Check your barrels before you commit to this one.
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