QA1 10HT550 High Travel Coilover Spring 2.5" ID 10" Length 550 lb/in Rate

QA1's 10HT550 is a high travel coil spring designed for those who demand reliable performance from their suspension, offering a balanced combination of maximum travel, consistent performance, and long-term durability for track or street use. This spring features a 2.5-inch inside diameter, 10-inch free length, and a linear 550 lb/in spring rate.

High Travel Design Benefits:

• Engineered with smaller diameter high-tensile chrome silicon alloy wire and fewer coils, allowing the spring to compress further before reaching solid state and maximize available suspension travel without bottoming out
• Reduces weight up to 28 percent and increases travel up to 20 percent compared with conventional springs
• Lighter springs reduce unsprung weight and react faster, optimizing suspension performance
• Compatible with standard 2.5-inch I.D. coilover hardware

Construction and Quality:

• Made from high-tensile chrome silicon alloy wire, keeping them lightweight without sacrificing strength
• Cold wound, heat treated, and shot peened through intensive manufacturing processes to ensure consistency, accuracy and durability
• Silver powder coated and ground at both ends for straight, consistent and accurate operations
• Clearly marked with free length and spring rate for quick and easy identification
• Features linear rate design for consistency and predictability

QA1 high travel springs are proudly made in the USA and come with a lifetime warranty. All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.