Eibach 0800.250.0275 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 component is part of Eibach's renowned ERS double-spring system, which allows suspension engineers and enthusiasts to create custom spring combinations for optimal track performance.

ERS System Design:

The ERS system utilizes a Main and Tender spring concept that delivers a softer initial rate when both springs compress together, then transitions to a firmer ending rate once the tender spring fully closes. The Main spring features a linear-rate characteristic and determines the final rate of the complete system, providing the foundation for precise suspension tuning that balances road contact with body control during cornering, acceleration, and braking.

Key Features:

• Linear-rate spring characteristic for predictable suspension behavior
• Compatible with over 700 different ERS spring components for unlimited combination possibilities
• High spring travel and deflection capability with short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior corrosion protection through phosphating and epoxy coating
• Manufactured to precise tolerances for consistent performance
• Part number imprinted directly on spring indicating rate and physical dimensions
• High dynamic durability for extended component longevity
• Block resistance design prevents coil binding

This Main spring is designed to work with Eibach Tender springs, Helper springs, and Connecting Plates to create a fully customizable suspension solution. Each spring is individually packaged and clearly marked for easy identification and installation.