Coilover Spring 1.875in ID 10in Tall 300lb

The Coilover Spring 1.875in ID 10in Tall 300lb from DRACO RACING is a precision-engineered suspension component designed for custom vehicle builds and performance modifications. Built for enthusiasts who demand precise ride height control and predictable damping characteristics, this coilover spring serves as the foundation for modern lowering and handling upgrades. Whether you're building a street car, autocross competitor, or show vehicle, this spring enables the geometry changes and compliance tuning that separate competent chassis setups from truly exceptional ones.

This coilover spring features a 1.875-inch inner diameter (ID) and 10-inch free length with a 300-pound spring rate, making it ideal for mid-weight performance applications where linear force curves and consistent rebound are critical. The 300lb rate provides enough resistance to minimize body roll during aggressive cornering while remaining compliant enough for daily driver comfort when paired with appropriate dampers. At 2.75 pounds, the relatively light mass reduces unsprung weight—a key factor in improving tire contact patch consistency and overall suspension responsiveness. The compact dimensions (3.9 x 3.4 x 11 inches when packaged) ensure fitment compatibility with most coilover kits and double-adjustable shock platforms available in the aftermarket.

Mechanics and tuners installing this spring should verify OD (outer diameter) and mounting hardware compatibility with their specific shock body before assembly, as coilover integration depends on precise bore matching. This 300lb rate works best on vehicles in the 2,500–3,500 lb range or as a rear-axle upgrade on heavier platforms; lighter cars may require softer rates while track-focused builds often benefit from stiffer options. Installation requires proper spring compressors and basic suspension knowledge—always adjust preload and ride height after installation to dial in optimal geometry for your intended use case, whether that's road racing, drifting, or show-quality stance.