Namura Forged Piston Kit for 2005-13 Yamaha YZ250F / WR250F - 76.95mm - FX-40033-B 2004 Triumph Daytona 955 flat foam sealing ring provides

flat foam sealing ring provides a perfect seat against the air box

The High Lifter Lift Kit for Polaris 800 Ranger RZR & RZR 800 "50" is Bigger

1991-1996 Honda XR250L

1980 Arctic-Cat Trail Cat 3000

(6) 1/4 in

Namura Forged Piston Kit for 2005-13 Yamaha YZ250F / WR250F - 76.95mm - FX-40033-B 2004 Triumph Daytona 955 flat foam sealing ring providesNamura Forged Piston Kit Namura Forged pistons offer dyno proven gains in performance and durability over industry standard 4032 forged pistons. Namura's exclusive forged alloy offers lower expansion rates, allowing for tighter build tolerances and superior tensile and yield strength at operating temperatures. Hard anodized domes for reduced carbon build up and heat resistance and M0S2 coated skirts for excellent break in protection and properties.