Athena S4C05800001B Cast Piston for Yamaha 125 YZ (1997-2025) - Piston Size 57.95 mm Forged 2-Stroke Piston Replacement - Motocross Dirt Bikes scooter tire SIZE : 9x8

SIZE : 9x8

Ideal for cleaning automatic chokes

Designed for modern motocross

Designed for KTM SX

ensuring you navigate challenging trails with confidence

Athena S4C05800001B Cast Piston for Yamaha 125 YZ (1997-2025) - Piston Size 57.95 mm Forged 2-Stroke Piston Replacement - Motocross Dirt Bikes scooter tire SIZE : 9x8If you're looking to unleash more low end torque, stronger mid range power, and overall improved performance from your Yamaha YZ125, the Athena S4C05800001B 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