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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
550 lbs/in
80 lbs - disc ring weight
Round Wire Progressive Rate Bump Springs 500-1000 lbs/in
Our exclusive 4130 Chromoly Double Adjuster offers wide adjustment range and precise adjustment
230 lbs/in
Swift Helper Springs 60mm ID, 2.4 in length 1.5 kg/mm Pair AP1 550 lbs/in60mm ID, 2. 4 in length 1. 5 kg mm Swift Helper Springs are made from a proprietary material. 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. The same springs are used in Super GT, Formula Nippon, F3, F3000, Super Taikyu, IMSA, Pirelli World Challenge, Rally America, VLN, Le Mans Series, Formula Drift, and many other professional racing avenues.
