Wiseco 3150TD Piston Ring Set for Honda FL400R FL350 Kawasaki Ultra 150 80.00mm MPN_710109C 1983 87 Yamaha YZ250 1983 87 Yamaha YZ250 875 Inches Material Color Back Size Finish Powder Coated Black 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 Emissions FALSE Product Disclaimer These rings resist wear from the exhaust bridge and are designed for extreme racing conditions Note: Ring Sets come "Per Piston" and may be only a singular ring if only a single ring is applicable