Eibach 0600.225.0650 ERS Race Main Coilover Spring

The Eibach ERS (Eibach Race Spring) Main Spring is a precision-engineered linear-rate coilover spring designed for racing and high-performance suspension applications. This spring serves as the primary component in Eibach's renowned double-spring system, providing the foundation for precise suspension tuning on track and competition vehicles.

ERS Double-Spring System:

The ERS system utilizes a Main and Tender spring concept that delivers optimal suspension performance through a two-stage compression characteristic. When both springs compress together, the system provides a softer initial rate for improved road contact and compliance. Once the tender spring fully compresses, the Main spring's linear rate takes over, delivering the firmer ending rate needed for body control during hard cornering, acceleration, and braking.

Key Features:

• Linear-rate characteristic determines the final rate of the suspension system
• Compatible with over 700 different ERS spring components for nearly unlimited tuning combinations
• High spring travel and deflection capacity with short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior corrosion protection through phosphating and epoxy coating
• Precision manufacturing with tight tolerances for consistent performance
• Part number imprinted on spring indicates spring rate and physical dimensions for easy identification
• Excellent block resistance and high dynamic durability

Application Notes:

This Main spring is designed to work with Eibach Tender springs (which determine initial rate) and Helper springs (which prevent spring looseness at full droop). Eibach Connecting Plates are used to join Main and Tender springs in both inside and outside diameter configurations depending on damper specifications.

Each spring is individually packaged and meets the demanding requirements of professional racing teams and serious enthusiasts who require precise, repeatable suspension performance.