This supplementary component in a suspension system aids the main spring in managing vehicle ride height and performance. Typically found in performance and racing applications, it’s a smaller, softer spring installed in series with the primary spring on a coilover shock absorber. Under minimal load, this auxiliary spring remains compressed, allowing the main spring to operate within its optimal range. As the load increases, it progressively engages, providing additional support and preventing the main spring from becoming unseated during suspension extension.
Its integration into the suspension setup provides several advantages. It assists in maintaining consistent spring preload and prevents spring rattle during instances of wheel lift or rapid suspension unloading. Historically, these components were developed to address issues encountered in high-performance scenarios where standard spring rates proved insufficient in managing body roll and maintaining consistent tire contact with the road surface. By improving suspension response and reducing the likelihood of spring dislodgement, it contributes to enhanced vehicle stability and control, particularly under demanding driving conditions.
