Athena S5F07800002A - Athena Piston Kit For Gas Gas EX 250F Standard Size A

Features: 2-stroke pistons are made from 4032 sillicum. 4-stroke pistons are made from 2618 sillicum. Both include 3% copper for better heat resistance. 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 circlips.