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| Listed in parts books | Not catalogued by year yet |
PISTON BSA GS 9:1 +070
A +070 oversize, 9:1 compression piston for the BSA GS engine.
PN · R1235/070
This is a piston listed for the BSA GS, cast for a 9:1 compression ratio and machined to the +070 oversize. The part number and catalog description both point to this being a BSA engine component, not a Triumph one, so if you're working on a Triumph twin this isn't your part.
$86.95
Pin your bike to check this part fits.
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