Wiseco 4889M09900 Piston Kit for 2004 05 Honda TRX450R 99.00mm 1991 Honda CR125R Product Details Product Line Wiseco Product Details Product Line Wiseco Piston Kit Part Number 40068M05400 Fitment Type Model Size Specific Fitment Use Type Aftermarket Performance Replacement Unit Sale Qty Each Style Standard Bore Piston Kit Position Material Finish Piston Cylinder Size 54 2004 Polaris XC 700 SP Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross Wiseco leads the performance aftermarket by producing the highest quality forged pistons for Dirt Bikes