Eibach 0800.225.0450 ERS 8in 2.25in ID 450lb Coilover Spring

Vehicle Fitment

• Universal coilover race spring application
• Fits coilover setups designed for 2.25 in. inner diameter springs
• Compatible with applications requiring 8.00 in. free length and 450 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
• 8.00 in. free length for applications needing more installed length and travel than shorter springs
• 450 lbs/in spring rate for suspension tuning and repeatable chassis response
• Engineered for maximum travel with compact block height
• Ultra-lightweight construction for reduced unsprung mass
• Each spring is individually tested
• High linearity and guaranteed rate consistency
• Sold individually as a single main spring

Specifications

• Brand: Eibach
• Part Number: 0800.225.0450
• Product Line: ERS Linear Main Spring
• Spring Type: Linear coilover spring
• Inner Diameter: 2.25 in. / 57 mm
• Free Length: 8.00 in. / 203 mm
• Spring Rate: 450 lbs/in
• Spring Rate Metric: 79 N/mm / 8.05 kg/mm
• Block Height: 3.43 in. / 87 mm
• Travel: 4.57 in. / 116 mm
• Block Load: 2055 lbs / 9141 N
• Weight: 2.69 lbs / 1.22 kg
• Quantity: 1x single spring

Included Components

• 1x Eibach ERS linear main spring

Product Description

The Eibach 0800.225.0450 is an ERS linear main spring built for coilover and motorsport suspension systems that use a 2.25-inch inner diameter spring. With an 8.00-inch free length and a 450 lbs/in linear spring rate, it is intended for suspension tuning where precise spring consistency, predictable handling response, and repeatable performance are required. This is a single spring, not a vehicle-specific lowering kit.

Official Eibach product data confirms this spring as an ERS Linear Main Spring with 2.25-inch inner diameter, 8.00-inch free length, and 450 lbs/in rate. A second trusted source aligns the supporting dimensional specs, including 57 mm inner diameter, 203 mm length, 79 N/mm rate, 87 mm block height, 116 mm travel, 2055 lb block load, and 2.69 lb weight. 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, preload, and coilover configuration.