Athena 14-17 Yamaha YZ 450 F Complete Stock Bore Cylinder Kit

This Athena Complete Stock Bore Cylinder Kit for your 2014-2017 Yamaha YZ 450 F gives you everything you need to restore your engine to its original performance specifications. You'll receive a lightweight aluminum cylinder with a standard bore, a complete piston assembly including the piston pin and rings, and all the necessary gaskets to get the job done. This kit is designed to match the performance and reliability of your original spare parts, ensuring your YZ 450 F runs as it should.

The cylinder itself is constructed from lightweight aluminum, which helps with heat dissipation and overall engine weight. It features a nickel-silicon coating on the barrel, a tough surface that's known for its durability and low friction. Athena also designed the piston specifically to further reduce friction, which means less power loss and smoother operation. These features work together to provide a reliable and smooth-running engine that feels like new.

When rebuilding your top end, using a complete kit like this from Athena ensures all the components are designed to work together seamlessly. This is a direct replacement for your stock cylinder, making the installation process straightforward as long as you follow the manufacturer's recommended procedures. Please note that this kit is not CARB approved and cannot be shipped to California.