Eibach 1200.250.0185 ERS Race Main Coilover Spring

The Eibach 1200.250.0185 is a high-performance race main spring designed for Eibach's renowned ERS (Eibach Race Spring) double-spring system. This precision-engineered coilover spring provides the foundation for optimizing suspension performance on racing and high-performance vehicles, delivering the perfect balance between compliance and control.

ERS Double-Spring System Technology:

This main spring works as part of Eibach's innovative dual-spring concept, which combines main and tender springs to achieve superior suspension tuning. The system provides a softer initial rate when both springs compress together, then transitions to a firmer ending rate once the tender spring fully compresses. With over 700 different spring components available in the ERS lineup, this system offers virtually unlimited combination possibilities for precise suspension tuning.

Key Features:

• Linear-rate characteristic determines the final rate of the suspension system
• Shot-peened surface treatment for enhanced fatigue resistance
• High spring travel and deflection capability at compact mounting lengths
• Precision manufacturing with tight tolerances for consistent performance
• Superior corrosion protection through phosphating and epoxy coating
• Part number imprinted directly on spring for easy identification of rate and dimensions
• Block resistance design prevents coil binding
• Exceptional dynamic durability for extended service life

Professional-Grade Construction:

Each Eibach ERS spring undergoes rigorous quality control and surface treatment processes to ensure maximum performance and longevity in demanding racing applications. The spring is individually packaged for protection and features clear part number identification for easy verification during installation and setup changes.

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 requirements and track conditions.