Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 4 lb. 84501 0-16000 RPM

0-16000 RPM

Featuring a double Velcro enclosure that secures the boot around the ankle and calf and durable rubber sole for top performance on the track

Self-Etching Primer

Radio Belt

Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 4 lb. 84501 0-16000 RPMUnlike our assist springs, our 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