Eibach 0500.225.0600 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 applications. This linear-rate spring serves as the foundation of Eibach's renowned double-spring system, providing the final spring rate once the tender spring fully compresses. Built to transform engine power into track adhesion through optimum grip, this race spring delivers the precise balance between compliance and control needed for competitive motorsports.

ERS Double-Spring System Benefits:

• Works with tender springs to provide softer initial rate, then firmer ending rate for optimal performance
• Linear-rate characteristic determines the final rate of the suspension system
• Compatible with over 700 different ERS spring components for nearly unlimited tuning combinations
• Reduces body roll, squat, and dive during cornering, acceleration, and braking
• Maintains permanent road contact while compensating for track irregularities

Premium Construction Features:

• Shot-peened surface treatment for enhanced fatigue resistance
• High-quality corrosion protection through phosphating and epoxy coating
• Manufactured to precise tolerances for consistent performance
• High spring travel (deflection) delivers high end loads at short mounting lengths
• Superior dynamic durability ensures extended component longevity
• Block resistance for maximum compression capability
• Clearly imprinted with part number indicating spring rate and physical dimensions for easy identification
• Individual protective packaging

This main spring is designed to work with Eibach connecting plates (sold separately) and can be paired with tender springs or helper springs depending on your suspension tuning requirements. Whether you're a professional suspension engineer or weekend racing enthusiast, the ERS system provides unsurpassed performance and flexibility for dialing in your setup.