Spring 2.25in ID Tender Linear

The EIBACH Spring 2.25in ID Tender Linear coil spring is a precision suspension component engineered for vehicles requiring supplemental spring support or load-leveling capability. This linear-rate helper spring is designed for mechanics and enthusiasts building custom suspension systems, air suspension conversions, or restoring vehicles with modified ride heights. The 2.25-inch inner diameter makes this spring compatible with standard coilover applications and traditional suspension architectures where additional load capacity or ride quality refinement is needed without compromising factory geometry.

EIBACH's linear spring design delivers consistent, predictable force throughout its compression range—a critical advantage over progressive-rate springs when fine-tuning suspension feel or managing heavy cargo loads. The 2.25-inch bore accommodates standard threaded collar designs and integrates seamlessly with both coilover shock packages and traditional spring-and-damper setups. At 2 pounds and measuring 4.125 × 4.125 × 6 inches in compressed form, this tender spring is compact enough for tucked installations yet robust enough to handle the stress cycles inherent in performance driving or daily-driven modified vehicles. Linear rate characteristics ensure proportional spring force delivery, eliminating the unpredictable breakover point common to progressive springs.

This spring suits builders upgrading air suspension systems, installing lowering kits, or adding load-carrying capacity to trucks and SUVs. Installation requires verifying bore diameter compatibility with your shock tower and confirming ride-height clearance before assembly. Proper preload setup is essential; work with suspension geometry calculations to prevent binding or premature fatigue. Whether you're dialing in a track-focused build or restoring a classic with modern suspension technology, EIBACH's proven manufacturing standards and linear design deliver the reliability needed for long-term durability under demanding conditions.