Eibach 0800.225.0900 ERS 8 Inch x 2.25 Inch Coil-Over Race Spring

The Eibach 0800.225.0900 is a high-performance 8" x 2.25" I.D. race main spring designed for coil-over suspension systems. This precision-engineered component is part of Eibach's renowned ERS (Eibach Race Spring) system, delivering the muscle needed to transform engine power into optimal track adhesion through a properly tuned spring system.

ERS Double Spring System:

This main spring works as part of Eibach's world-famous ERS double-spring concept, which combines main and tender springs to provide a softer initial rate when both springs compress together, then delivers a firmer ending rate once the tender spring fully closes. The main spring features linear-rate characteristics and determines the final rate of the suspension system, allowing suspension engineers and enthusiasts to create nearly unlimited combinations from over 700 different spring components.

Key Features:

• 8 inch length with 2.25 inch inner diameter for precise fitment
• Linear-rate characteristic for predictable suspension response
• Shot-peened surface treatment for enhanced durability
• High spring travel and deflection for maximum performance at short mounting lengths
• Precision tolerances for consistent performance
• Superior corrosion protection through phosphating and epoxy coating
• Clearly imprinted with part number indicating spring rate and physical dimensions
• High dynamic durability for extended component longevity
• Individual protective packaging

This race main spring provides the firm support needed to reduce body roll, squat, and dive during cornering, acceleration, and braking, while working in harmony with tender or helper springs to maintain optimal road contact over irregular surfaces.