Eibach 1200.250.0120 ERS Race Main Coilover Spring 12in 250lb

The Eibach 1200.250.0120 is a precision-engineered race main spring designed for the ERS (Eibach Race Spring) double-spring system. This high-performance coilover spring delivers the muscle needed to transform engine power into optimal track adhesion through precise suspension tuning. The spring provides the critical balance between compensating for road irregularities while maintaining firm control during cornering, acceleration, and braking.

ERS Double-Spring System:

This main spring is part of Eibach's renowned ERS system, which combines over 700 different spring components to create nearly unlimited suspension combinations. The system utilizes a Main and Tender spring concept that provides a softer initial rate when both springs compress together, then delivers a firmer ending rate once the tender spring fully closes. This main spring features linear-rate characteristics and determines the final rate of the complete system.

Key Features:

• Linear-rate main spring with 250 lb/in spring rate
• 12-inch free length for versatile coilover applications
• High spring travel and deflection capability at short mounting lengths
• Shot-peened surface treatment for enhanced durability
• Superior corrosion protection through phosphating and epoxy coating
• Precision manufacturing with tight tolerances
• Block resistance for maximum compression control
• Part number imprinted on spring indicating rate and dimensions
• Compatible with Eibach connecting plates for tender spring integration

Engineered for racing and high-performance applications, this ERS main spring delivers exceptional dynamic durability and component longevity. Each spring is individually packaged and manufactured to exacting specifications for professional suspension tuning.