Pro-X 28.SES2424-1 Steel Exhaust Valve and Spring Kit engine-valve-train-pushrods Zip-out thermal vest liner

Zip-out thermal vest liner

Market Color: Muerte

ruts and uneven/rocky terrain

1997-2025 Yamaha YZ125

Aluminum lower adjuster will not damage or scratch valves

Pro-X 28.SES2424-1 Steel Exhaust Valve and Spring Kit engine-valve-train-pushrods Zip-out thermal vest linerMaterial: 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