| Also known as | JPO643 |
| Listed in parts books | Not catalogued by year yet |
PISTON SET BSA 650 7.5-1
Piston set for the BSA 650 twin, 7.5:1 compression ratio.
This is a piston set for the BSA 650 twin, listed at a 7.5:1 compression ratio. The catalog entry is brief, and we don't have more detail on this one beyond the compression ratio noted in the listing. It also shows up in our records under the JPO643 number, so if that's what's printed in your parts book, this is the same physical part.
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Since this is a BSA fitment rather than a Triumph one, if you're working on a Triumph twin this isn't the part you want. Call the shop and we'll confirm which BSA 650 models this compression ratio was used on before you order.
We'd rather give you a straight answer on fitment over the phone than have you guess from a bare listing.
Sorry if we got something wrong here. If you think this information isn't correct, .