Flat Wire Helper Spring - 152mm Length | 65mm ID | 0.9kfg/mm 5.0" OD USRA and UMP Modified with

USRA and UMP Modified with an outer diameter of 5"

Usable Stroke : 103mm | 4

Max Load : 858lbs

Spring Rate : 4000lbs/inch

Flat Wire Helper Spring - 152mm Length | 65mm ID | 0.9kfg/mm 5.0" OD USRA and UMP Modified withExplore the capabilities of keeping your springs mounted on the coilover perch when they're under negative or zero load with Swift Helper Springs, designed to have minimal effect on the springs rate of the main coilover springs. Prevent the dismount of your springs without having to change spring rates. Our Helper Springs are specifically designed to have a minimal effect on the spring's rate of retention on the coilover perch while the shock is under