JIMS, LOWER VALVE SPRING COLLAR SET. CHROMOLY

Jims, lower valve spring collar set. Chromoly

Chromoly. Dimensions: .060" thick, .570" I.D. and 1.590" O.D. Jims chromoly steel lower collars are custom machined to prevent harmonic vibrations in the springs caused by the lower collar moving in the head. Compatible with OEM parts

Fits: > 05-17(NU)Twin Cam (excl. 110" models); 04-20 XL; 08-12(NU)XR1200; 03-10(NU)Buell XB