Hyperco 187A0550 Coil-Over Spring ID Length lb/in Rate - 2.25 7 550

The Hyperco 187A0550 is a high-performance coil-over spring engineered for motorsports and racing applications. This spring features a 2.25 inch inner diameter, 7 inch free length, and a 550 pound spring rate, providing precision suspension tuning for demanding track conditions.

Optimum Body Diameter Design:

These springs are part of Hyperco's optimum body diameter (OBD) spring program, which adjusts the body diameter of the spring relative to the end coils to take full advantage of high tensile steel material by optimizing applied stress. This innovative design delivers more deflection, reduced weight, improved rate linearity, and greater resistance to bowing compared to traditional spring designs.

Key Features:

• 2.25" inner diameter for compatibility with standard coil-over hardware
• 7" free length provides optimal suspension travel
• 550 lb/in spring rate for precise suspension control
• Blue powder coat finish for corrosion resistance and professional appearance
• Constructed from high-quality steel
• Undergoes two separate magnaflux inspections—before manufacture and after coiling—to ensure wire is free from surface imperfections that could lead to spring failure
• Fits all standard coil-over hardware

Hyperco coil-over springs are trusted by professional racers and performance enthusiasts across multiple motorsports disciplines including road racing, circle track, drag racing, and off-road applications. The 187A series offers the ideal combination of compact size and performance for vehicles requiring precise suspension geometry and maximum usable travel.