Athena S5F07700008A Cast Piston for Yamaha 250 YZ F (2014-2015) - Piston Size 76.96 mm Forged 4-Stroke Piston Replacement - Motocross Dirt Bikes Chainsaw Chain The durable lock is inset

The durable lock is inset and protected by the metal I-beam frame and offers easier access & actuation

Bob's got your back with a removable dry basket included

the perfect companion for those seeking the ultimate off-road performance

Small/4-3/8" x 15-1/2" x 11-5/8"

Installation is straightforward: stretch

Athena S5F07700008A Cast Piston for Yamaha 250 YZ F (2014-2015) - Piston Size 76.96 mm Forged 4-Stroke Piston Replacement - Motocross Dirt Bikes Chainsaw Chain The durable lock is insetIf you're looking to unleash more low end torque, stronger mid range power, and overall improved performance from your Yamaha 250 YZ F, the Athena S5F07700008A 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 250cc. Whether you're a weekend trail