Eibach 0600.225.0550 ERS 6in 2.25in ID 550lb Coilover Spring

Vehicle Fitment

• Universal coilover race spring application
• Fits coilover setups designed for 2.25 in. inner diameter springs
• Compatible with applications requiring 6.00 in. free length and 550 lbs/in spring rate
• Do not assign vehicle-specific fitment without confirming coilover perch dimensions, available travel, and installed height requirements

Features

• Eibach ERS linear main spring
• Linear spring rate design for predictable suspension behavior
• 2.25 in. inner diameter for motorsport and coilover applications using this spring size
• 6.00 in. free length for compact installed-height requirements
• 550 lbs/in spring rate for higher-rate suspension tuning
• Designed to maximize travel with a compact block height
• Ultra-lightweight construction for reduced unsprung mass
• Each spring is individually tested
• Engineered for high linearity and rate consistency
• Suitable for race, track, and custom coilover applications

Specifications

• Brand: Eibach
• Part Number: 0600.225.0550
• Product Line: ERS Linear Main Spring
• Spring Type: Linear coilover spring
• Inner Diameter: 2.25 in. / 57 mm
• Free Length: 6.00 in. / 152 mm
• Spring Rate: 550 lbs/in
• Spring Rate Metric: 9.84 kg/mm
• Block Height: 2.73 in. / 69 mm
• Travel: 3.27 in. / 83 mm
• Block Load: 1799 lbs / 8002 N
• Weight: 2.05 lbs / 0.93 kg
• Quantity: 1x single spring
• Color: Red
• Warranty: 5-year limited warranty

Included Components

• 1x Eibach ERS linear main spring

Product Description

The Eibach 0600.225.0550 is an ERS linear main spring built for coilover and motorsport suspension systems that use a 2.25-inch inner diameter spring. With a 6.00-inch free length and a 550 lbs/in linear spring rate, it is intended for suspension tuning where precise spring consistency, compact packaging, and repeatable handling response are required. This is a single spring, not a vehicle-specific lowering kit.

Official Eibach catalog data confirms this spring as an ERS Linear Main Spring with 2.25-inch inner diameter, 6.00-inch length, 550 lbs/in rate, 2.73-inch block height, 3.27-inch travel, 1799 lb block load, and 2.05 lb weight. The 2025 Eibach Motorsport catalog also aligns with the ERS product family specifications and confirms the broader design characteristics of the standard 2.25-inch I.D. race spring line. Because this is a universal motorsport spring, vehicle-specific fitment should never be assumed. Lift or drop height cannot be stated because installed ride-height change depends entirely on the vehicle, corner weight, motion ratio, and coilover configuration.