Athena Piston Kit (290cc Big Bore) (A) - 6.00mm Oversize to 82.95mm, 13.5:1 Compression - S4F08300007A

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