Description & Size Guide
Valve Spring Kit Standard To 490" Lift For 57-85 XL (NU)
Incl. steel top collars and dual spring style valve springs. No machining required for installation. 20% more pressure than stock and suitable for stock to .490" lift applications. Valve springs have an interference fit to reduce harmonics and control spring surge. Pressure: 85lbs@1.310", 295lbs@.820". Coil bind: .790".57-85 XL (NU)
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This quick reference fitment information is provided to direct you to the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.
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