Eibach 0500.163.0080 Quarter Midget Race Main Spring I.D. - 1.63

The Eibach 0500.163.0080 is a high-performance Race Main Spring designed for quarter midget racing applications. Engineered with a 1.63" inner diameter, this precision spring is part of Eibach's renowned ERS (Eibach Race Spring) system, delivering the optimal balance of compliance and control needed for competitive racing.

ERS Double Spring System:

This Main spring works as part of Eibach's innovative ERS double-spring system, which combines Main and Tender springs to create a progressive suspension response. The Main spring provides a linear-rate characteristic that determines the final rate of the system, while Tender springs control the initial rate. This design delivers a softer initial compression when both springs work together, then transitions to a firmer rate once the tender spring fully compresses, giving you precise suspension control through corners, acceleration, and braking.

Key Features:

• 1.63" inner diameter for quarter midget racing applications
• Linear-rate Main spring characteristic for predictable performance
• Compatible with over 700 ERS components for custom tuning combinations
• Shot-peened surface treatment for enhanced fatigue resistance
• High spring travel and deflection capacity at short mounting lengths
• Precision manufacturing with tight tolerances
• Advanced corrosion protection via phosphating and epoxy coating
• Part number imprinted on spring for easy identification of rate and dimensions
• Exceptional dynamic durability for long component life
• Individual protective packaging

Whether you're a professional suspension engineer or weekend racing enthusiast, this Eibach Race Main Spring provides the precision tuning capability needed to optimize your quarter midget's handling characteristics and maximize track performance.