ATHENA Piston Kit - 71.96 mm - Yamaha S4F07200006B

Piston Kit - 71.96 mm - Yamaha
Two-stroke pistons are made from 4032 silicium, 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 0.01 mm, Forged piston tooling allows for the lightest available product, Kit includes antiwear coated piston, rings, pin and circlips