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Honda XL80 XR80 CRF80 piston kit BIG BORE 51.00mm (92cc) Cayden Cycle BIG Boy B2
This is a NEW Cayden Cycle BIG Boy B2 51.00mm (made in Japan)(10-11 to 1 compression ratio) piston kit & aftermarket top end gasket set. See piston comparison in pic #2, OEM piston is on the right side. It also includes a high performance lightweight camshaft (see camshaft specs in pic # 5) & HD valve springs. This kit will make your bike a 92cc. NOTE: installing this kit will require you to bore & hone your stock cylinder, but no re-sleeve is required.