Athena Big Bore Kits - Yamaha Stock Item:BIG BORE KIT YAMAHA YZ450F 03-05.WR450F 03-06 480cc acting like ultra effective thermo

acting like ultra effective thermo regulators

Solid brass wire

the Edale is a classic styled

- Waterproof pocket for trousers

Athena Big Bore Kits - Yamaha Stock Item:BIG BORE KIT YAMAHA YZ450F 03-05.WR450F 03-06 480cc acting like ultra effective thermoGet more power and torque with premium quality European big bore kits that include, cylinder, piston, rings, and all gaskets required for a hassle free conversion. Spare pistons, rings, and gaskets also available. Can't see your bike listed here, or the product you want is not in stock? Get in touch to see if there's a kit for your model and ask about price and availability.