Eibach 0800.250.0300 ERS Race Main Coilover Spring

The Eibach ERS (Eibach Race Spring) Main Spring is a high-performance linear-rate coilover spring engineered for precise suspension tuning in racing and performance applications. This spring is part of Eibach's renowned ERS double-spring system, which allows suspension engineers and enthusiasts to create nearly unlimited spring rate combinations by pairing Main springs with Tender or Helper springs.

ERS Double-Spring System:

The ERS system utilizes a Main and Tender spring concept that delivers a softer initial rate when both springs compress together, then transitions to a firmer final rate once the Tender spring fully closes. The Main spring features a linear-rate characteristic and determines the system's final spring rate, while Tender springs control the initial rate and are available in both linear and progressive configurations.

Key Features:

• Linear-rate characteristic for consistent, predictable suspension behavior
• High spring travel (deflection) with high end loads at short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior dynamic durability for extended component longevity
• Precision-manufactured to tight tolerances for accurate tuning
• Advanced corrosion protection through phosphating and epoxy coating
• Clearly imprinted with part number indicating spring rate and physical dimensions
• Compatible with over 700 ERS components for custom suspension configurations

Designed to reduce body roll, squat, and dive during cornering, acceleration, and braking, this Main spring delivers the firm foundation needed to transform engine power into optimal track adhesion. Each spring is individually packaged to prevent damage during shipping and storage.