Kibblewhite springs are made from super clean chrome silicon wire. All springs are shot peened and treated for maximum fatigue life. Beehive springs reduce total valvetrain mass. Kits work with mild cams up to .630" lift. Kits include beehive valve springs, upper collars and lower collars.
Note
Fits Harley-Davidson Twin Cam 05-17 , Sportster XL 04-later, Buell XB 03-10 with 7 mm Valve Stems