Eibach 1400.2530.0125 XT Barrel Spring - Extreme Travel Race Main Spring

The Eibach XT (Extreme Travel) Barrel Spring is a high-performance race main spring engineered for motorsport applications requiring precise suspension control and maximum durability. This linear-rate coil spring is part of Eibach's renowned ERS (Eibach Race Spring) system, designed to transform engine power into optimal track adhesion through precisely tuned suspension characteristics.

Key Features:

• High spring travel and deflection capability for maximum end loads at compact mounting lengths
• Precision-wound barrel design with exact tolerances for consistent performance
• Shot-peened surface treatment for enhanced fatigue resistance and longevity
• Superior corrosion protection through phosphating and epoxy coating
• Block resistance design prevents bottoming under extreme loads
• Clearly imprinted part number, spring rate, and physical dimensions for easy identification
• Compatible with Eibach's modular ERS system including tender springs, helper springs, and connecting plates

This main spring serves as the foundation of Eibach's dual-spring system, providing the linear-rate characteristic that determines the final rate of your suspension setup. When combined with tender springs, it creates a softer initial compression rate that transitions to a firmer ending rate once the tender spring fully compresses. The result is a suspension system soft enough to maintain road contact over irregularities while firm enough to minimize body roll, squat, and dive during aggressive cornering, acceleration, and braking. Each spring is individually packaged and manufactured to exacting standards for championship-level racing performance.