Yamaha on-road motorcycle athena 290cc big bore kit
Engine / performance
Big Bore Cylinder Kit includes nickel-carbide-plated cylinder with enlarged water passages, precision-made piston with rings, pins, clips, gaskets, O-rings, and all other parts needed for a complete installation.
Fits ’08-’13 WR250R, ’08-’11 WR250X
Note: WR250R and WR250X are regulated by the EPA and state law. This accessory affects exhaust emissions and is for closed-course competition only. Useon public roads constitutes illegal tampering punishable by law.
Yamaha on-road motorcycle athena 290cc big bore kit
Yamaha on-road motorcycle athena 290cc big bore kit
