Seller notes

Piston Kit - 1.00mm Oversize to 41.00mm Fits 1989 Yamaha YSR50 Piston Kit Wiseco 727M04100 - 1.00mm Oversize to 41.00mm Free Fedex Ground Shipping! Forged from high-silicon aluminum alloy for maximum strength and dependability. Innovative forging design and piston skirt provide maximum horsepower and torque. Wiseco High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise). Oversize pistons require cylinder sleeving. Specifications Bore Diameter|41.00m...

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