QA1 10S250 Coil-Over Spring 1-7/8" ID 10" Length 250 lb/in Chrome Silicon

The QA1 10S250 is a high-performance coil-over spring featuring a 1-7/8" (1.875") inner diameter, 10" free length, and a 250 lb/in spring rate. Engineered for racing and performance suspension applications, this spring delivers consistent, predictable handling characteristics lap after lap.

Key Features:

• Chrome silicon wire construction — manufactured from the highest quality chrome silicon steel, the strongest spring material available for performance applications
• Cold wound, heat treated, and shot peened for maximum consistency, accuracy, and long-term durability
• Ground at both ends to ensure straight, true, and accurate operation under load
• Silver powder coat finish for excellent corrosion resistance and longevity
• Clearly marked with free length and spring rate for quick, easy identification
• Lightweight design — engineered with fewer coils and optimized wire diameter to maximize suspension travel while minimizing unsprung weight
• Lifetime guarantee to remain within 2% of original free height and spring rate under normal operating conditions

Specifications:

• Inner Diameter: 1-7/8" (1.875")
• Free Length: 10"
• Spring Rate: 250 lb/in
• Material: Chrome Silicon Steel
• Finish: Silver Powder Coat

QA1 coil-over springs are a trusted choice for circle track, drag racing, and street performance builds. Each spring undergoes intensive quality control processes to ensure the consistency and accuracy that competitive motorsports demand.