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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
USPS PRIORITY MAIL INCLUDED
Top end rebuild kits include a forged piston
I've converted thousands of YZ250s to big bores since I first invented this kit in 2008
Millennium
squish clearance
YZ125 BIG BORE CYLINDERS Size:124cc USPS PRIORITY MAIL INCLUDEDPORTED AFTERMARKET CYLINDERS for 2005 21 YZ125,134,144 $350 $550 USPS PRIORITY MAIL INCLUDED! These aftermarket cylinders are designed by Eric Gorr for better reliability over original cylinders. Special design consideration was given to the exhaust bridge area on the small bores and porting on the big bores. Longevity is all about casting design and tooling. These cylinders don't have stress risers around the exhaust port like a OE Yami cylinder so
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