Wiseco Piston Kit for Honda ATC250R / TRX250R - Bored to 69.00mm - 526M06900 1991 Yamaha XT350 Cylinders are then diamond honed

Cylinders are then diamond honed to the exact bore dimension and proper surface finish to ensure the proper ring seal and oil retention

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Wiseco Piston Kit for Honda ATC250R / TRX250R - Bored to 69.00mm - 526M06900 1991 Yamaha XT350 Cylinders are then diamond honedPart Number: 526M06900 These kits contain everything you need to complete your piston repair, the first time High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power. Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy. All Piston Kits are precision crafted and forged in the USA Wiseco's Piston Kits are offered for nearly every popular application in the powersports