Namura PISTON KIT (67.47MM) NX-10200-8 fits 1981-1983 Honda ATC200 / 1984-1985 Honda ATC200M / 1984-1986 Honda ATC200S / 1983-1986 Honda ATC200X / 1984 Honda TRX200 / 1980-1984 Honda XR200 / 1982-2002 Honda XR200R / 1982-1983 Honda BIG Red 200 ATC200E

MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizuresMachined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistonsHypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures