| Listed in parts books | Not catalogued by year yet |
PISTON TRI 650 AL 8.5 020
Aluminum piston for the Triumph 650 twin, 8.5 compression, 020 oversize.
This is a piston for the Triumph 650 twin engine, machined in aluminum, listed at an 8.5 compression ratio and in the 020 oversize. The 020 designation means it's bored out from standard, which is the size you'd need if your cylinder has already been rebored to take up wear or clean up damage.
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We don't have a lot of history on this particular part number in our records, so we can't speak to which specific model years it was cataloged for beyond what's stated here. If you're piecing together a rebuild, check your cylinder bore measurement against this oversize before you order, and give us a call if you want to confirm compression ratio and fit for your engine.
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