10in x 225# Coil Over Spring

The 10in x 225# Coil Over Spring is a precision-engineered suspension component designed for serious builders and enthusiasts upgrading coil-over suspension systems on performance and off-road vehicles. This 10-inch coil-over spring delivers a stiff 225 pound-per-inch spring rate, making it ideal for vehicles that demand responsive handling, improved load support, and predictable suspension geometry under aggressive driving or heavy payloads. Whether you're building a custom lowered street car, a track-focused drift machine, or a high-performance off-road platform, this spring provides the foundation for tuned damping and controlled ride height.

Manufactured from high-grade steel and finished in blue epoxy coating for corrosion resistance, the 10in x 225# Coil Over Spring features a 2.5-inch inner diameter bore that mates with industry-standard coil-over bodies and shock absorbers. The 225 lb/in spring rate strikes a balance between compliance and stiffness—firm enough to minimize body roll and squat during acceleration or cornering, yet compliant enough to maintain tire contact on rough surfaces. The full 10-inch length accommodates both extended and compressed suspension travel, allowing installers to dial in precise ride height and spring preload for optimal vehicle dynamics.

This coil-over spring suits builders pairing adjustable dampers with custom suspension geometry—common in drift, stance, and performance street applications where fine-tuning spring rate against shock valving determines handling balance. The blue epoxy coating resists salt spray and road contamination, extending service life in daily-driven or racing environments. Installation requires proper tools for spring compression and coil-over assembly; ensure shock absorber internals and mounting hardware are compatible with 2.5-inch ID and confirm vehicle weight distribution before final preload adjustment to achieve desired suspension geometry.