This Eibach ERS coil-over spring is specified at 100mm length with a 60mm inside diameter and is described as part of the ERS race spring system. The copy relays the exact sizing and summarizes the ERS production strengths—linear rate characteristics and low tolerances—so shoppers receive both dimensional clarity and concise product-family context.
Eibach ERS 100mm Length x 60mm ID Coil-Over Spring