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 and mud while delivering unmatched

and mud while delivering unmatched airflow for explosive power and razor-sharp throttle response

Built with industry-leading 1/4” thick aircraft-grade aluminum side panels and stainless steel hardware

breaking and stripping out screws

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

or tackling rugged terrain

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 and mud while delivering unmatchedIf 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