Description
Jims JIMS, valve spring kit. Titanium .675″ lift
84-99 Evo Big Twin; 99-04 Twin Cam; 86-03 XL Sportster (NU)
Street & Performance. Titanium top collars. Kits include top and lower collars, springs and valve keys. An interference double spring design with damper that keeps the inner and outer springs from locking and reduces harmonic vibrations. Spring OD 1.510″. Pressure 184lbs@1.850″, 422lbs@1.280″. Coil bind 1080″.
