Pro-X 28.SIS3405-2 Steel Intake Valve and Spring Kit engine-valve-train-valve-train-kit Wheel base and offset feature

Wheel base and offset feature 2 adjustability by simply swapping spline spacer locations

10 speed levels

2014-2020 Yamaha YFZ450R

Allen screws with washers and acorn nuts for the motor and transmission with all motor mounts

Market Color: Matte Blue

Pro-X 28.SIS3405-2 Steel Intake Valve and Spring Kit engine-valve-train-valve-train-kit Wheel base and offset featureMaterial: Steel Replaces the OEM valves & valve springs. Steel, nitrided valves for increased durability and less wear under extreme conditions. Stronger valve springs deal with the extra weight of the steel valves. Springs are made from premium chrome vanadium steel for higher performance and durability at high rpm. Kit contains a set of steel intake or exhaust valves plus a set of specially designed valve springs; can be installed using the OEM