Eibach 0700.225.0550 ERS 550 lb Coilover Main Spring 2.25in ID x 7in

Vehicle Fitment

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

Features

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

Specifications

• Part Number: 0700.225.0550
• Type: ERS linear main coilover spring
• Spring Rate: 550 lbs/in
• Inside Diameter: 2.25 in (57 mm)
• Free Length: 7.00 in (178 mm)
• Block Height: ~3.17 in
• Travel: ~3.83 in
• Load at Block Height: ~2,106 lbs
• Weight: ~2.53 lbs

Included Components

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

Product Description

The Eibach 0700.225.0550 ERS main coilover spring is a high-quality linear coilover spring that provides a **550 lbs per inch** rate, offering balanced support and responsive handling for custom suspension applications. With its **2.25 in inside diameter** and **7.00 in free length**, this spring delivers generous travel while maintaining controlled support, making it suitable for both street and track-oriented builds.

Constructed from precision-formed spring steel with a durable red powder-coat finish, the 0700.225.0550 spring maximizes travel and minimizes block height, helping improve overall suspension performance and handling feel. Each spring is individually tested to ensure consistent performance and rate accuracy. Because this part is universal (not tied to a specific vehicle), verify compatibility with your selected coilover shocks and hardware before installation for best results.