Eibach 0800.225.0250 ERS 8" Coil-Over Spring 2.25" ID 250 lb/in

The Eibach 0800.225.0250 is an 8-inch race main spring with a 2.25-inch inner diameter, designed for high-performance coil-over suspension systems. This component is part of Eibach's renowned ERS (Eibach Race Spring) system, engineered to deliver precise suspension tuning for racing and performance applications.

ERS Double Spring System Technology:

Eibach's 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 suspension system. When combined with tender springs, the system delivers a softer initial rate as both springs compress together, then transitions to a firmer ending rate once the tender spring fully closes. This dual-rate design optimizes suspension performance by balancing road contact and body control during cornering, acceleration, and braking.

Key Features:

• 8-inch free length with 2.25-inch inner diameter for coil-over applications
• Linear-rate main spring design for predictable suspension characteristics
• High spring travel and deflection capacity for maximum load capacity at short mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Precision wound to tight tolerances for consistent performance
• Phosphate and epoxy coating provides superior corrosion protection
• Clearly marked with part number indicating spring rate and physical dimensions
• Compatible with over 700 ERS components for unlimited tuning combinations
• High dynamic durability ensures long component life under racing conditions

This main spring is designed to work with Eibach tender springs, helper springs, and connecting plates to create a fully customizable suspension system. The modular design allows suspension engineers and enthusiasts to fine-tune their setup by selecting from hundreds of spring rate and dimension combinations available in the ERS catalog.