Eibach 1400.250.0150 14" x 2.5" ID Coil-Over Main Spring 150 lb/in

The Eibach 1400.250.0150 is a 14-inch race main spring with a 2.5-inch inside diameter, engineered for coil-over suspension systems in high-performance and racing applications. This precision-manufactured spring delivers the optimal balance between compliance and control needed to maximize traction and handling performance.

ERS Double-Spring System Compatibility:

This main spring is part of Eibach's renowned ERS (Eibach Race Spring) system, which allows suspension tuners to create customized spring combinations from over 700 different components. The main spring features a linear-rate characteristic and determines the final rate of the system. When combined with a tender spring, it provides a softer initial rate during combined compression, then transitions to the firmer main spring rate once the tender spring fully compresses. This dual-rate behavior optimizes both ride compliance over irregularities and body control during cornering, acceleration, and braking.

Key Features:

• Linear-rate main spring for predictable, consistent suspension behavior
• High spring travel and deflection capability at compact mounting lengths
• Shot-peened surface treatment for enhanced fatigue resistance
• Phosphate and epoxy coating for superior corrosion protection
• Precision tolerances for reliable performance and longevity
• Part number imprinted directly on spring for easy identification of rate and dimensions
• Block resistance design prevents coil binding
• Compatible with Eibach connecting plates for tender spring integration

Designed for serious motorsports applications, this Eibach main spring provides the professional-grade performance and durability required for competitive racing environments while offering the flexibility to fine-tune suspension characteristics for specific track conditions and vehicle setups.