Eibach 0600.250.0750 ERS Race Main Coilover Spring 6" x 2.5" ID 750 lb/in

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 measures 6 inches in length with a 2.5-inch inner diameter and features a spring rate of 750 lb/in, providing the firm foundation needed for competitive motorsports and track-focused builds.

ERS Double-Spring System:

This Main spring is part of Eibach's renowned ERS double-spring system, which combines Main and Tender springs to achieve optimal suspension performance. The system provides a softer initial rate when both springs compress together, then transitions to the firmer Main spring rate once the Tender spring fully compresses. With over 700 individual spring components available, suspension engineers can create nearly unlimited combinations to fine-tune handling characteristics for any application.

Key Features:

• Linear-rate design determines the final rate of the dual-spring system
• High spring travel and deflection capability within compact mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior dynamic durability for extended component longevity
• Manufactured to precise tolerances for consistent performance
• Advanced corrosion protection through phosphating and epoxy coating
• Part number imprinted directly on spring for easy identification of rate and dimensions
• Compatible with Eibach Tender springs, Helper springs, and connecting plates

Designed for serious racers and suspension tuners who demand precision and reliability, this ERS Main spring delivers the performance needed to transform engine power into optimal track adhesion while maintaining the balance between compliance and body control during cornering, acceleration, and braking.