Eibach 1400.250.0110 ERS Race Main Coilover Spring

The Eibach ERS (Eibach Race Spring) system delivers professional-grade suspension tuning through precision-engineered coilover springs. This race main spring is designed to transform engine power into optimal track adhesion by providing the perfect balance between compliance and control.

ERS Double Spring System:

Eibach's renowned ERS double-spring system combines main and tender springs to create a sophisticated two-stage rate characteristic. The system provides a softer initial rate when both springs compress together, then transitions to a firmer ending rate once the tender spring fully compresses. With over 700 different single spring components available, the ERS system offers virtually unlimited tuning combinations for suspension engineers and enthusiasts alike.

Main Spring Function:

This main spring features a linear-rate characteristic and determines the final rate of the complete spring system. It works in conjunction with tender springs (available separately) to control body roll, squat, and dive during cornering, acceleration, and braking, while maintaining sufficient compliance to absorb road irregularities.

Key Features:

• High spring travel and deflection capability with short 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
• Clearly imprinted with part number indicating spring rate and dimensions
• Compatible with Eibach connecting plates for tender spring integration
• Individual protective packaging

Note: Helper springs are available separately to prevent main spring movement at full droop, covering up to 50mm of spring-to-perch gap without affecting suspension characteristics.