HELPER SPRINGS PREVENT DISMOUNTING OF SPRINGS FROM PERCH ON COILOVER WITHOUT CHANGING SPRING RATE.
Unlike assist springs, helper springs are specifically designed to have a minimal effect on the spring rate of the main coilover spring. Helper springs allow the spring to stay on mounted on the coilover perch when the shock is under negative or zero load, also known as droop travel. It is ideal to run helper springs on setups where you cannot preload the main spring due to height issues or when experiencing springs coming loose from the coilover perch.
H030-040-040
Spring Rate: 39 lbs/in (7 N/mm) (0.7 K/mm)
Free Height: 4.0" 101.5mm)
Stroke: 2.9" (73.5mm)
Fully Compressed Height: 0.9" (23mm)
Force to Fully Compress: 128 lbs
H030-040-250
Spring Rate: 252 lbs/in (45 N/mm) (4.5 K/mm)
Free Height: 4.0" (101.5mm)
Stroke: 2.3" (58.5mm)
Fully Compressed Height: 1.7" (43mm)
Force to Fully Compress: 584 lbs
H030-040-400
Spring Rate: 403 lbs/in (72 N/mm) (7.2 K/mm)
Free Height: 4.0" (101.5mm)
Stroke: 2.1" (53mm)
Fully Compressed Height: 1.9" (48mm)
Force to Fully Compress: 831 lbs
H030-060-250
Spring Rate: 252 lbs/in (45 N/mm) (4.5 K/mm)
Free Height: 6.0" (152.5mm)
Stroke: 3.3" (84mm)
Fully Compressed Height: 2.6" (6mm)
Force to Fully Compress: 836 lbs