Eibach 0700.250.0550 ERS 550 lb Coilover Main Spring 2.50in ID x 7in

Vehicle Fitment

• Universal application - designed for use with compatible coilover suspension systems
• Not specific to any single vehicle make/model

Features

• ERS linear main coilover spring engineered for performance suspension tuning
• 550 lbs/in spring rate for firm yet balanced support and handling
• Precision-formed high-tensile spring steel construction for durability
• Red powder-coat finish for corrosion resistance
• Maximum travel with optimized block height
• Individually tested for consistent spring rate and performance
• Reduced unsprung mass enhances suspension response
• Ideal for custom coilover builds, street performance, and track use

Specifications

• Part Number: 0700.250.0550
• Type: ERS linear main coilover spring
• Spring Rate: 550 lbs/in
• Inside Diameter: 2.50 in (63.5 mm)
• Free Length: 7.00 in (178 mm)
• Block Height: ~3.07 in
• Travel: ~3.93 in
• Load at Block Height: ~2161 lbs
• Weight: ~2.79 lbs

Included Components

• 1x Eibach ERS 550 lb/in main coilover spring

Product Description

The Eibach 0700.250.0550 ERS main coilover spring is a high-quality suspension component built for custom performance coilover systems where precise linear rate and responsive behavior are desired. With a **550 lbs per inch** spring rate and a **2.50 in inside diameter**, this spring delivers balanced support and handling characteristics - making it suitable for spirited street driving or track-oriented suspension builds.

Constructed from precision-formed high-tensile spring steel and finished with a durable red powder coat, the 0700.250.0550 spring provides ample travel while maintaining an optimized block height, which contributes to improved suspension responsiveness and stability. Its **7.00 in free length** and consistent performance testing ensure reliable behavior under load. Because this component is universal (not tied to a specific vehicle), confirm compatibility with your chosen coilover shocks and hardware before installation to achieve the best results.