Vertex Replica Piston Kit for 2004 11 KTM 105 SX 51.95mm 22991A feed mpn 2459M08500 Fits: 1990 96 Yamaha 650 Product Fits: 1990 96 Yamaha 650 Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Winderosa Gasket Set with OS Part Number 611119 Fitment Type Unit Sale Qty Kit 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 California Air Resource Board Compliance FALSE Product Disclaimer 2012 Arctic Cat 550 Vertex cast or forged piston kit with MSO2 coated piston skirt Every Vertex piston has a molybdenum disulphide (MOS2) coating on the piston skirt