| Listed in parts books | Not catalogued by year yet |
RING SET CUB +.030
Piston ring set for the Triumph Cub, sized for a +.030 oversize rebore.
This is a piston ring set for the Triumph Cub, machined to the +.030 oversize. The catalog lists it plainly as a ring set for a rebore job that's already gone to the .030 step, so it's meant for a cylinder that's been bored out that specific amount, not a standard-bore engine.
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We don't have a lot more detail on this one beyond what's in the listing. If you're not sure what size your cylinder has been taken out to, measure before you order, since a ring set built for one oversize won't seal right in a bore that's been cut to a different one.
Call the shop if you want to talk through what rebore size you're working with before you commit to a set.
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