Eibach 0600.225.0600 ERS Race Main Coilover Spring

The Eibach ERS (Eibach Race Spring) main spring is a precision-engineered coilover spring designed for racing and high-performance suspension systems. This linear-rate spring serves as the foundation of Eibach's renowned double-spring system, providing the firm ending rate needed for optimal suspension control during aggressive driving.

ERS Double-Spring System:

The ERS system utilizes a Main and Tender spring configuration that delivers a softer initial rate when both springs compress together, then transitions to a firmer ending rate once the tender spring fully closes. This Main spring determines the final rate of the complete system, while tender springs control the initial rate. With over 700 different spring components available, the ERS system offers virtually unlimited tuning combinations for suspension engineers and enthusiasts.

Key Features:

• Linear-rate characteristic provides consistent, predictable spring behavior
• High spring travel and deflection capability at short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Dual corrosion protection through phosphating and epoxy coating
• Precision manufacturing with tight tolerances for consistent performance
• High dynamic durability ensures long component life under racing conditions
• Block resistance design prevents coil binding
• Clearly imprinted with part number, spring rate, and physical dimensions
• Individual protective packaging prevents damage during shipping and storage

This main spring works with Eibach tender springs (for dual-rate tuning) and helper springs (to prevent spring unseating at full droop). Connecting plates are available separately to link main and tender springs together on your coilover damper.