Eibach 0800.225.0800 ERS Race Main Coilover Spring

The Eibach 0800.225.0800 is a precision-engineered Race Main Spring designed for the company's renowned ERS (Eibach Race Spring) double-spring system. This linear-rate coilover spring provides the foundation for optimizing suspension performance in racing and high-performance applications by delivering consistent, predictable spring rates under extreme loads.

ERS Double-Spring System:

This Main spring works as part of Eibach's innovative dual-spring configuration, which combines Main and Tender springs to create a sophisticated suspension response. The system provides a softer initial rate when both springs compress together, then transitions to a firmer ending rate once the Tender spring fully closes. The Main spring determines the final rate of the complete system, ensuring consistent performance during hard cornering, acceleration, and braking.

Key Features:

• Linear-rate characteristic for predictable suspension behavior
• Compatible with over 700 ERS spring components for custom tuning combinations
• High spring travel and deflection capability at compact mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior corrosion protection through phosphating and epoxy coating
• Manufactured to precise tolerances for consistent performance
• Part number imprinted directly on spring for easy identification
• Designed to reduce body roll, squat, and dive while maintaining road contact

Construction and Durability:

Each Eibach Race Main Spring undergoes rigorous quality control and surface treatment processes to ensure exceptional dynamic durability and component longevity. The shot-peening process work-hardens the spring material, while the phosphate and epoxy coating system provides outstanding protection against corrosion in demanding racing environments. Every spring is individually packaged to prevent damage during shipping and storage.

This Main spring is designed to work with Eibach Tender springs, Helper springs, and Connecting Plates to create a fully customizable suspension system tailored to specific vehicle weight, track conditions, and driving style requirements.