Wiseco Piston Kit 66.40mm Yamaha YZ250/YZ250X | 804M06640 790 Duke Upgrade your dirt bike with

Upgrade your dirt bike with our heavy-duty front disk guard and ride with the peace of mind that your rotor is protected from the harshest terrains

Powerbomb headers are the front runner in performance headers

7 and deliver the most amazing brake effect

This waterproof layer is incredibly adaptable - wearable as an inner liner

We include all the hardware you need for install and detailed instructions

Wiseco Piston Kit 66.40mm Yamaha YZ250/YZ250X | 804M06640 790 Duke Upgrade your dirt bike withPiston Kit 66. 40 mm Yamaha YZ250 YZ250X Forged from high silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity and increased horsepower, Innovative forging design and piston skirt provide maximum horsepower and torque, Features forged pistons, rings, wrist pins, and circlips, These high tech piston designs offer