Eibach 0600.225.1100 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 suspension applications. This spring serves as the foundation of Eibach's renowned double-spring system, delivering the muscle needed to transfer power to the track through optimum tire adhesion and precise suspension control.

ERS Double-Spring System:

The ERS system utilizes a Main and Tender spring concept that provides exceptional tuning flexibility. The Main spring determines the final rate of the system and maintains a linear-rate characteristic for predictable performance. When combined with a Tender spring, the system delivers a softer initial rate during combined compression, then transitions to the firmer Main spring rate once the Tender spring fully compresses. This allows suspension engineers to fine-tune the balance between compliance over road irregularities and control during cornering, acceleration, and braking.

Key Features:

• Linear-rate spring characteristic for consistent, predictable performance
• Compatible with over 700 ERS components for nearly unlimited suspension combinations
• High spring travel and deflection capability at short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• High dynamic durability ensures extended component longevity
• Manufactured to precise tolerances for accurate suspension tuning
• Superior corrosion protection through phosphating and epoxy coating
• Clearly imprinted with part number indicating spring rate and physical dimensions
• Individual protective packaging to prevent damage during storage and shipping

Application Notes:

This Main spring is designed to work with Eibach Tender springs (for rate tuning), Helper springs (to prevent spring looseness at full droop), and Connecting Plates (to join Main and Tender springs). The ERS system provides professional race teams and performance enthusiasts with the precision tools needed to optimize suspension setup for any track condition or driving style.