QA1 3-4/5in ID Tapered High Travel Pigtail Spring - 9in Length x 650lbs/in - Silver Powder Coated

This QA1 high travel spring uses a chrome silicon alloy wire, which allows for fewer coils and a smaller wire diameter. This design makes the spring lighter and increases the distance between coils, giving you more travel. The lighter weight also helps reduce unsprung weight, allowing your suspension to react faster for better performance. QA1's careful heat-treating and post-processing of this high-grade material means it has greatly improved fatigue life. The coil design is also made so the springs can be compressed to coil-bind without changing the spring rate or free height.

The springs are ground at both ends for straight, consistent operation, and they're finished with a silver powder coat for durability. Each spring is clearly marked with its free length and spring rate, making identification quick and easy. QA1 proudly makes these springs in the USA, and they are lifetime guaranteed to stay within 2% of their original free height and rate under normal use.