Wiseco Semi Keystone Ring Set for Polaris 550 Mercury HP Models 73.50mm 2895KD 2015 Ski Doo Renegade Backcountry 600 HO E TEC with 146 Inch Track 2001 Honda CR80R 2001 Honda CR80R Fitments 2004 Honda TRX450FE FourTrax Foreman ES Product Details Product Line Wiseco Piston Rings Part Number 2895KD Fitment Type Model Size Specific Fitment Use Type Replaceent Part for Wiseco Aftermarket Piston Kit ONLY Unit Sale Qty Ring Kit for Single Piston Style KD Style Rings Size Position Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Material Color Finish Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Overall Seat Width Overall Seat Length Piston Cylinder Size 73 These rings resist wear from the exhaust bridge and are designed for extreme racing conditions