Spring 2.5in ID Tender Progressive ID

The EIBACH Spring 2.5in ID Tender Progressive coil spring (Part No. 0200.250.250-550) is a precision suspension component engineered for custom spring applications requiring variable load rates. This tender coil spring delivers a progressive spring rate ranging from 250 to 550 lb/in, meaning the effective stiffness increases as compression deepens—a characteristic that allows for softer initial response under light loads while maintaining support under heavy deflection. With a 2.5-inch inner diameter and steel construction finished in green powder coat, this spring is built to resist corrosion and maintain performance across extended duty cycles.

The 3.46-inch compressed length and precisely engineered spring constant make this EIBACH tender spring suitable for applications where load transitions must be smooth rather than abrupt. The progressive rate design reduces bottoming risk and absorbs energy across a wider range of travel, rather than offering the fixed resistance of a linear spring. Steel construction with green powder-coat protection provides durability in both dry and humid environments, while the compact footprint suits integrated mounting scenarios common in suspension tuning, off-road recovery systems, and vibration isolation platforms.

This spring is specified for buyers who understand spring rate dynamics and require a component that bridges soft initial support with progressive resistance. The 250–550 lb/in range covers applications where baseline compliance is desired but maximum load capacity must scale upward. Each spring is sold individually, allowing precise specification matching for dual-spring setups or single-spring integrated designs. Technicians and engineers working in suspension design, custom builds, or OEM-equivalent replacements will recognize EIBACH's reputation for precision spring manufacturing and material consistency.