Eibach 0800.250.0350 ERS Race Main Coilover Spring

The Eibach 0800.250.0350 is a high-performance race main spring designed for the company's renowned ERS (Eibach Race Spring) double-spring coilover system. This precision-engineered component provides the foundation for optimum suspension tuning, delivering the perfect balance between compliance and control needed to transfer power to the track through maximum tire adhesion.

ERS Double-Spring System Technology:

This main spring works as part of Eibach's innovative dual-spring concept, which combines a main spring with a tender or helper spring to create a progressive suspension response. The linear-rate main spring determines the final, firmer rate of the system once the tender spring fully compresses, while allowing for a softer initial rate when both springs work together. This approach reduces body roll, squat, and dive during aggressive driving while maintaining compliance over road irregularities.

Key Features:

• Linear-rate main spring design for consistent, predictable suspension response
• Part of the ERS modular system with over 700 interchangeable components for virtually unlimited tuning possibilities
• High spring travel and deflection capability within compact mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior dynamic durability for extended component life under racing conditions
• Manufactured to precise tolerances for consistent performance
• Advanced corrosion protection through phosphating and epoxy coating
• Clearly imprinted with part number, spring rate, and physical dimensions for easy identification
• Block resistance design prevents coil binding

Compatible with Eibach connecting plates for integration with tender springs, this main spring allows suspension engineers and racing enthusiasts to fine-tune their setup for specific track conditions and vehicle requirements. The modular ERS system design means components are available ex-stock for quick suspension changes between race events.