Wiseco 4764M08750 87.5mm 9:1 Compression Ratio Piston Kit
Forged from high-silicon aluminum alloy for maximum strength and dependability. Innovative forging design and piston skirt provide maximum horsepower and torque. Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy. All Wiseco high-performance motorcycle pistons come with rings and circlips. Fits: Yamaha SR500, TT500, XT500 all years.