Eibach 1400.250.0175 ERS Race Main Coilover Spring

The Eibach 1400.250.0175 is a high-performance Race Main Spring designed for the acclaimed ERS (Eibach Race Spring) double-spring system. This precision-engineered coilover spring delivers the muscle needed to transfer engine power to the track through optimum tire adhesion while maintaining the critical balance between compliance and control.

ERS Double-Spring System:

The ERS system utilizes a Main and Tender spring concept that provides a softer initial rate when both springs compress together, then transitions to a firmer ending rate once the tender spring fully closes. This Race Main Spring features a linear-rate characteristic and determines the final rate of the complete system. With over 700 different single spring components available, the ERS system offers nearly unlimited tuning combinations for suspension engineers and enthusiasts alike.

Key Features:

• Linear-rate main spring for precise, predictable suspension response
• High spring travel (deflection) delivering high end loads at short mounting lengths
• Block resistance for durability under extreme compression
• Shot-peened surface treatment for enhanced fatigue resistance
• High dynamic durability ensuring extended component longevity
• Precision manufacturing with tight tolerances for consistent performance
• Superior corrosion protection through phosphating and epoxy coating
• Clearly imprinted with part number indicating spring rate and physical dimensions
• Compatible with Eibach Connecting Plates for multi-spring configurations

This Race Main Spring is ideal for motorsport applications where suspension tuning precision is critical. It works seamlessly with Eibach Tender springs to create the optimal spring rate progression for your specific application, reducing body roll, squat, and dive during cornering, acceleration, and braking while maintaining tire contact over road irregularities.