SKU: 10HT550 | UPC: 806990112811
QA1 2-1/2in ID High Travel Spring – 10in Length x 550lbs/in – Silver Powder Coated
This QA1 high travel coil spring delivers precise 550 lb/in rate for performance coilover setups in drag racing, circle track racing, street performance cars and street rods. Featuring 2-1/2 inch inner diameter and 10 inch free length, it cuts unsprung weight while providing extended travel and quick response for better handling and control. The chrome silicon alloy build with silver powder coat ensures durability in demanding conditions.
Key Features
- High Travel Design: Fewer coils and smaller wire diameter create lighter weight, increased travel distance between coils, and faster reaction for optimized suspension dynamics
- Chrome Silicon Construction: High-tensile alloy wire, cold wound, heat treated and shot peened for high strength, consistency and extended fatigue life
- Silver Powder Coated Finish: Resists corrosion and provides long-lasting protection in harsh racing environments
- Ground Squared Ends: Ensures straight, consistent seating and accurate operation in coilover assemblies
- Marked Specifications: Clearly labeled with 10 inch free length and 550 lb/in rate for easy identification and setup
Product Notes
- Compresses to coil bind without impacting rate or free height
- Avoid extreme heat exposure to maintain performance
- Available lengths include 7, 9, 10, 12, 14 and 16 inches
Installation Notes
- Professional installation recommended.
- Seat spring fully on ground ends for proper load distribution
- Compatible with standard 2-1/2 inch ID coilover shocks and struts
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Coilover Suspension | Drag Racing, Circle Track, Street Performance |
Why Choose QA1?
- Over 30 years leading performance suspension components for motorsports
- Manufactured in USA with 83,000 sq ft facility for quality control
- Advanced processes like in-house heat treating for reliable precision
Frequently Asked Questions
- Q: Does this spring fit specific coilover kits?
A: Designed as universal component for QA1 and most 2-1/2 inch ID coilover systems in racing and performance vehicles - Q: What material and finish are used?
A: High-tensile chrome silicon steel with silver powder coat, heat treated, shot peened and ground ends for durability - Q: What is the warranty coverage?
A: Lifetime guarantee to remain within 2% of original free height and rate under normal use
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Protective cardboard tube, 12 x 3 x 3 inches
- Weight: 4.8 lbs
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