Namura Top End Rebuild Kit for 1992 96 Honda CR250R 66.36mm NX 10026 CK1 MPN_232M08550 fused 3 layer design (now widely copied) fused 3 layer design (now widely copied) for combined performance and protection Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Pivot Works Watertight Wheel Collar and Bearing Ki Part Number PWFWC T07 500 Fitment Type Unit Sale Qty Kit Style Material Color Size Finish Position Front 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 California Air Resource Board Compliance FALSE Product Disclaimer a top end gasket kit and wrist pin bearings (where applicable) are all included in this convenient Product Details Product Line Namura Top End Rebuild Kit Part Number NX 10026 CK1 Fitment Type Model Size Specific Fitment Use Type Aftermarket Replacement Unit Sale Qty Style Type C Standard Bore Piston Kit Size 66