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By stinkwheel
#102030
For interest, here's my 612 piston about 1500 miles after fitting to a freshly honed bore and being ridden like I meant it. The only reason I've got the top-end off is to remove a compression plate to bump the compression a bit higher. I don't think I've had a bullet piston so gas-tight before.
RIMG1538.JPG
RIMG1538.JPG (2.03 MiB) Viewed 4274 times

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