This Hyperco coil spring is a conventional style front spring. It has a 5.5 inch outer diameter and a 9.5 inch free length and has 800 pounds spring rate. Great looking blue powder coat finish and made from high-quality steel. Spring features both ends closed and ground flat. Hyperco's high travel conventional front springs brings closed end Nascar style spring technology to the Hyperco conventional spring line. With traditionally designed, open on pitch coils, very little contact is made with the riser. This means very little of the end of the coil of the spring will deaden out during the early portion of spring deflection. The closed end design of Hyperco's high travel conventional a front spring directly impacts the number of active coils that deflect during spring compression. This creates a very progressive spring rate through the initial stages of deflection. Static load is reached with less spring deflection leaving more on track dynamic travel and more travel on the racetrack enables more aggressive and faster set-ups.