| Listed in parts books | Not catalogued by year yet |
PISTON,+.020 MSS/VENOM
Oversize (+.020) piston for the Velocette MSS/Venom, not a Triumph part.
This is a piston listed at +.020 over for the MSS/Venom. That's a Velocette designation, not a Triumph one — the MSS and Venom were Velocette singles, so this piston belongs on that bike, not on anything out of the Triumph lineup we mostly deal in.
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The +.020 marking tells you it's an oversize piston, meant for a cylinder that's already been bored out that far over standard, typically after a rebore to clean up wear or damage.
We don't have much else on file for this one beyond the basic listing. If you're sourcing this for a Velocette rebuild, give us a call and we can confirm what we've actually got in stock before you order.
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