Namura Technologies FX-40033 Piston Kit - Standard Bore 76.94, 13.5:1 Compression

Bore: 76.94mm
Compression: 13.5:1 Compression
Sizing: Standard Bore

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 seizures. Machined 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 pistons. Hypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.

Vehicle Fitment:

2013-2015 Gas Gas EC 250 F
2005-2009 Yamaha WR250F
2011-2013 Yamaha WR250F
2005-2013 Yamaha YZ250F