Coilover Sprint 12in x 2.5in 160lb Barrel

The Coilover Sprint 12in x 2.5in 160lb Barrel by SWIFT SPRINGS is a high-performance suspension spring engineered for serious automotive enthusiasts and professional tuners who demand precise ride height control and responsive handling. This coilover spring is purpose-built for custom suspension setups where adjustable damping and consistent spring rates are non-negotiable—whether you're building a track-focused platform, a street-performance machine, or a show car that demands predictable geometry. SWIFT SPRINGS coilovers have earned trust in the modifier community for delivering the fine-tuned suspension dynamics that OEM springs simply cannot match.

The 12-inch free length and 2.5-inch barrel diameter are standard dimensions that integrate seamlessly into most coilover platforms and suspension housings, allowing for drop tuning without compromising spring seat geometry or bind risk. A 160-pound spring rate provides moderate resistance—stiff enough to minimize body roll and maintain consistent contact patch pressure during cornering, yet compliant enough to absorb road imperfections without excessive harshness. This rate sits in the sweet spot for street-to-road-course applications, offering the stability needed for spirited driving without the severe ride penalty of ultra-high rates. The barrel design maximizes usable coil space, reducing stress concentration and extending service life under repeated suspension cycling.

This spring is ideal for builders pairing a quality damper body—such as adjustable monotube or twin-tube units—into a fully tuned suspension assembly. The 160lb rate works best on lightweight to mid-weight vehicles where proportional spring-to-mass ratios maintain natural suspension frequency (typically 1.5–2.5 Hz) and prevent over-springing. Installation requires proper tools, a coilover platform compatible with this bore size, and accurate measurement to ensure correct ride height and camber setup. Always pair with matching springs on all four corners and have alignment checked post-installation to verify geometry targets and maximize tire wear and handling precision.