CYLINDER WORKS Yamaha YZ450F & WR450F 2014-2018 Big Bore Cylinder Kit Part #21005-K02

Upgrade your Yamaha YZ450F or WR450F with the Cylinder Works Big Bore Cylinder Kit, designed specifically for models from 2014 to 2018. This kit features a complete assembly that includes a cylinder, piston kit, and gaskets, providing a comprehensive solution for enhancing engine performance. The cylinder maintains a stock appearance but is nickel silicon carbide plated for increased durability and longer service life, ensuring your motorcycle runs smoothly under demanding conditions. No machine work is needed for installation, making this upgrade straightforward for experienced DIY enthusiasts or professional mechanics.
Designed to improve power output and engine longevity, this kit is matched with Vertex pistons to reduce engine noise and promote reliable performance. The kit is compatible with standard bore applications and includes all necessary components except for valve stem seals, which are not included in the top end gasket set. Replacement pistons, gaskets, and ring sets are available separately, providing flexibility for ongoing maintenance or further upgrades. This product is an ideal choice for riders seeking to increase their bike’s displacement by 2.0mm, boosting compression ratio to 12.5:1 for improved throttle response and acceleration.
Built with quality materials and precision manufacturing, the cylinder is nickel silicon carbide plated for longer life and resistance to wear. It fits directly onto existing engine components, ensuring a secure fit and optimal performance without extensive modifications. Perfect for Yamaha enthusiasts committed to maintaining high performance standards, this kit offers a reliable upgrade path to enhance your motorcycle's power and durability for many rides to come.

Features:

• Complete standard bore kits for Yamaha YZ450F and WR450F (2014-2018)

• Includes cylinder, piston kit, and gaskets for a comprehensive upgrade

• Nickel silicon carbide plated cylinder for increased durability

• No machine work required for installation

• Matched with Vertex pistons to ensure longevity and reduce engine noise

• High compression kit with 12.5:1 ratio for improved performance

• Designed to fit standard bore applications only

• Replacement pistons, gaskets, and ring sets available separately

Fits,
Yamaha WR450F 2016
Yamaha WR450F 2017
Yamaha WR450F 2018
Yamaha YZ450F 2014
Yamaha YZ450F 2015
Yamaha YZ450F 2016
Yamaha YZ450F 2017
Yamaha YZ450FX 2017
Yamaha YZ450FX 2016
Yamaha YZ450FX 2018