Eibach 0800.225.0750 ERS Race Main Coilover Spring

The Eibach 0800.225.0750 is a race main coilover spring from Eibach's ERS double spring system. The Main spring has a linear-rate characteristic and determines the final rate of the system. It works with a Tender spring, which sets the initial rate, so the suspension starts softer and then moves to the firmer final rate once the tender spring closes completely.

How the ERS system works:

• Main spring: linear-rate, sets the final rate of the system
• Tender spring: available in linear-rate and progressive-rate versions, sets the initial rate
• Helper spring: keeps the Main spring from becoming loose in the spring seat at full wheel droop, and has very little spring rate of its own
• Connecting plates: join Main and Tender springs, with inside and outside diameter versions depending on the damper used

Key Features:

• High spring travel (deflection) and therefore high end loads at short mounting lengths
• Block resistance
• Surface treated through shot-peening
• High dynamic durability for long component life
• Precise tolerances
• Corrosion protection by phosphating and epoxy coating
• Individual protective packaging
• Easy identification, with the part number imprinted on the spring to indicate spring rate and physical dimensions

A properly tuned spring system balances road contact against control of body roll, squat and dive during cornering, acceleration and braking. The ERS system lets suspension engineers and weekend enthusiasts build combinations from standard spring components to suit their setup.