Eibach 0600.225.0450 ERS Race Main Coilover Spring

The Eibach ERS (Eibach Race Spring) Main Spring is a high-performance linear-rate coilover spring designed for racing and performance suspension applications. This precision-engineered spring is part of Eibach's renowned double-spring system, which allows suspension tuners to create custom spring rate combinations for optimal handling characteristics.

ERS Double-Spring System:

The ERS system uses a Main and Tender spring concept to provide superior suspension tuning flexibility. The Main spring determines the final rate of the system with its linear-rate characteristic, while Tender springs (sold separately) control the initial rate. When compressed together, both springs provide a softer initial rate, then transition to a firmer ending rate once the tender spring fully compresses. This design optimizes the balance between ride compliance and body control during cornering, acceleration, and braking.

Key Features:

• Linear-rate characteristic for predictable suspension behavior
• Compatible with over 700 ERS components for virtually unlimited tuning combinations
• High spring travel and deflection capability with short mounting lengths
• Shot-peened surface treatment for enhanced durability
• Superior corrosion protection through phosphating and epoxy coating
• Precision manufacturing with tight tolerances
• Block resistance for consistent performance
• Part number imprinted on spring indicates spring rate and physical dimensions
• High dynamic durability for extended component life
• Individual protective packaging

This Main spring works with Eibach Tender springs, Helper springs, and Connecting Plates (all sold separately) to create a custom-tuned suspension system tailored to your specific racing or performance driving needs.