Athena 17-24 Honda CRF 450 R Stock Bore Complete Cylinder Kit

If you're rebuilding the top end of your 2017-2024 Honda CRF 450 R, this complete cylinder kit from Athena is a solid choice to get you back to factory performance. It's designed to match the original specifications, ensuring your engine runs as smoothly and reliably as it did when it was new. This kit focuses on using well-built components to ensure longevity and consistent operation.

The heart of this kit is the lightweight aluminum cylinder, which helps with heat dissipation. It features a nickel-silicon coating on the barrel, a common practice for durability and reduced wear. Athena also includes a piston specifically designed to minimize friction, which means less power loss and potentially better engine response. This attention to detail helps maintain the engine's original feel and performance characteristics.

When you open the box, you'll find everything you need to complete the cylinder installation. This includes the standard bore aluminum cylinder, a complete piston assembly with the piston pin and rings already installed, and all the necessary gaskets to seal everything up properly. This makes the installation process more straightforward, as you won't need to source individual components separately. Just be aware that this kit is not CARB approved and cannot be shipped to California.