Wiseco 4100XZ Piston Ring Set for Honda CRF XR Z 50 41.00mm 2008 Gas Gas Enducross EC 125 This is a major improvement This is a major improvement over the stock setup 2006 Harley Davidson Road King Classic FLHRCI Product Details Product Line Wiseco Piston Rings Part Number 4100XZ 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 XZ 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 41 00mm 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