Athena S4C05800001A Cast Piston for Yamaha 125 YZ (1997-2025) - Piston Size 57.94 mm Forged 2-Stroke Piston Replacement - Motocross Dirt Bikes Miter Saw Stand Polisport keeps your front end

Polisport keeps your front end protected and your bike looking sharp

this number plate combines maximum gloss for a factory-fresh shine with exceptional high-impact resistance to prevent breaking under pressure

breaking and stripping out screws

The combination of a POWERSTATE Brushless Motor and REDLINK PLUS Intelligence provides an unmatched fire rate with zero ramp-up time

Athena S4C05800001A Cast Piston for Yamaha 125 YZ (1997-2025) - Piston Size 57.94 mm Forged 2-Stroke Piston Replacement - Motocross Dirt Bikes Miter Saw Stand Polisport keeps your front endIf you're looking to unleash more low end torque, stronger mid range power, and overall improved performance from your Yamaha YZ125, the Athena S4C05800001A is the perfect choice. Engineered in Italy by one of the world's leading powersports manufacturers, this high quality cast piston kit is specifically designed to pair with Athena's Big Bore Cylinder Kits, reliably increasing your bike's displacement from 125cc. Whether you're a weekend trail