Eibach 0800.250.0200 ERS Race Main Coilover Spring

The Eibach ERS (Eibach Race Spring) Main Spring is a precision-engineered linear-rate coilover spring designed for racing and high-performance applications. This spring serves as the foundation of Eibach's renowned double-spring system, providing the muscle needed to transfer engine power to the track through optimum tire adhesion.

ERS Double-Spring System:

The ERS system uses a Main and Tender spring concept that delivers 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 system and features a linear-rate characteristic for predictable, consistent performance. With over 700 different spring components available, the ERS system offers nearly unlimited tuning combinations for suspension engineers and enthusiasts.

Key Features:

• Linear-rate characteristic for consistent performance throughout compression
• High spring travel and deflection capacity at short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior corrosion protection through phosphating and epoxy coating
• Manufactured to precise tolerances for optimal performance
• Part number imprinted on spring indicating rate and physical dimensions
• Individually packaged for protection during storage and shipping
• High dynamic durability for extended component longevity
• Block resistance prevents coil binding under maximum compression

This Main spring is designed to work with Eibach Tender springs (for dual-rate tuning) or Helper springs (to prevent spring looseness at full droop). Connecting plates available separately for Main/Tender spring combinations.