ATHENA S4F07800004A 955141 PISTON KYMCO KXR BIG BORE 78MM.

Two-stroke pistons are made from 4032 silicium

Four-stroke pistons are made from 2618 silicium – the same material used to produce Formula 1 pistons

Both include 3% copper in materials for better heat resistance

All pistons are forged using a precision heat-treatment process that allows for production tolerances of just .005m

Forged piston kits are available in A, B and C sizing

Forged piston tooling allows for the lightest available product

Kits include antiwear coated piston, rings, pin and circlip

Made in Germany

Manufacturer Part #: S4F07800004A

Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm. For more information go to www.P65Warnings.ca.gov.