Eibach 0500.225.0950 ERS Race Main Coilover Spring

The Eibach ERS (Eibach Race Spring) system delivers precision-engineered suspension tuning for racing and high-performance applications. This Race Main Spring is a key component in Eibach's renowned double-spring system, designed to transform engine power into optimal track adhesion through perfectly balanced suspension dynamics.

ERS Double-Spring System Technology:

The ERS system utilizes a Main and Tender spring concept that provides exceptional tuning flexibility. The Main spring features a linear-rate characteristic and determines the final rate of the complete system. When combined with a Tender spring, the system delivers a softer initial rate as both springs compress together, then transitions to the desired firmer ending rate once the tender spring fully closes. This sophisticated approach allows suspension engineers to fine-tune the balance between road compliance and body control during cornering, acceleration, and braking.

Key Features:

• Part of Eibach's 700+ component ERS system offering nearly unlimited spring combination possibilities
• Linear-rate characteristic for predictable, consistent performance
• High spring travel and deflection capacity with short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Superior dynamic durability for extended component longevity
• Precision tolerances for exact suspension tuning
• Advanced corrosion protection through phosphating and epoxy coating
• Clearly imprinted with part number indicating spring rate and physical dimensions
• Individual protective packaging for safe storage and transport

Main springs work with Helper springs (to prevent looseness at full droop) and Tender springs (to modify initial rates), all connected via Eibach's specialized connecting plates. This modular approach enables precise suspension optimization for any racing application or performance requirement.