This Eibach bump spring is 2.25 inches long with a 1.36 inch inner diameter and a 150 lb/in spring rate, intended for coilover applications that demand a firm bump stop characteristic. Offered to tune suspension compression progression, the higher rate helps control more aggressive compression events where a stiffer secondary spring response is required within compatible coilover assemblies.
Eibach Bump Spring - 2.25in L / 1.36in ID / 150 lbs/in