Spring Conv. High Travel 9.5in x 5in x 450lb

The Spring Conventional High Travel 9.5in x 5in x 450lb from SWIFT SPRINGS is engineered for serious suspension builders and off-road enthusiasts who demand maximum articulation and load capacity in extreme conditions. Whether you're designing a high-performance lifted truck, building a rock crawler, or developing a competition-grade suspension system, this coilover spring delivers the extended travel geometry needed to absorb massive vertical displacement while maintaining consistent spring rate throughout the stroke. High-travel springs like this are essential when you've upgraded to long-travel shocks and want suspension geometry that keeps your chassis level during aggressive terrain navigation.

This spring features a 450-pound load rating and a 5-inch ID (inner diameter) designed to wrap around mid-stroke and full-extension shock bodies common in performance off-road applications. The 9.5-inch overall length accommodates the extended droop and compression cycles found in modern long-travel suspension designs, where standard springs would bind or lose preload during full articulation. SWIFT SPRINGS' conventional construction (linear rate progression) provides predictable spring behavior—critical when dialing suspension geometry and tuning ride height across varied terrain. At 5.6 lbs, the spring weight is light enough for weight-sensitive builds while maintaining the structural integrity needed for high-cycle durability in competition and backcountry use.

Builders working with coilover shock packages, aftermarket suspension kits, or custom-fabricated frames will find this spring ideal for front or rear applications where travel exceeds 8 inches and load demands are substantial. It pairs best with adjustable dampers and preload-adjustable spring perches to fine-tune suspension response and maintain proper ride height under varying payloads. Installation requires careful measurement of shock stroke length and mounting geometry to ensure the spring seats correctly at full compression and full extension without binding. For optimal performance, match this spring with shocks rated for equivalent or greater travel range, and consult suspension geometry data to confirm ride height and anti-geometry calculations.