Athena STD 54mm Cylinder Kit for YAMAHA YZ125 X 2020-2022

Specifications:

• Athena's Big Bore kit brings the raw power you have been missing in an easy to install, reliable package that bolts on with no machining needed in most cases, and includes easy-to-follow step-by-step installation instructions.
• Constructed from aluminium, the cylinder is lined with a nickel-carbide coating for durable, reliable performance, and the water jackets have been widened for a higher flow rate, cooling the cylinder, resulting in less power lost due to heat.
• Features a forged piston that's been molybdenum coated for high performance use and extended wear life.
• Includes: Big bore cylinder, big bore piston, piston pin, piston pin rings, gasket kit, Note: to achieve optimum performance re-jet the carburetor with the available jet kits.

Bike Fitment:

• YAMAHA YZ125 X 2020
• YAMAHA YZ125 X 2021
• YAMAHA YZ125 X 2022