Pro-X 28.SES2440-1 Steel Exhaust Valve and Spring Kit riding-apparel-pants-street 2010-2012 Harley Davidson XL1200N Sportster

2010-2012 Harley Davidson XL1200N Sportster 1200 Nightster

1984-1987 Honda Civic 1

2014 KTM 300 XC-W

2016 Polaris Sportsman 570 SP Hunters Edition

Average tensile strength: 3970lbs

Pro-X 28.SES2440-1 Steel Exhaust Valve and Spring Kit riding-apparel-pants-street 2010-2012 Harley Davidson XL1200N SportsterMaterial: 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