Wiseco 3484TD Piston Ring Set for Yamaha YZ490 IT490 88.50mm 2008 Honda TRX450R ER Sportrax 1998 Ski Doo Mach 1R 1998 Ski Doo Mach 1R Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Electrosport Plug In Regulator Rectifier Part Number ESR127 Fitment Type Unit Sale Qty Style Material Color Size Finish Position Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Piston Cylinder Size Piston Size Added Cylinder Stroke Volume Final Engine Displacement Exhaust Configuration Muffler Size Muffler End Tip Style Windshield Height Windshield Width Handlebar Diameter Ca ARB Compliance Non CARB Complaint CARB Compliant Product Disclaimer 50mm Piston Size Added Cylinder Stroke Volume Final Engine Displacement Exhaust Configuration Muffler Size Muffler End Tip Style Windshield Height Windshield Width Handlebar Diameter California Emissions FALSE Product Disclaimer Compatible with Wiseco Pistons ONLY Will NOT work with OE or any other brand piston