Hyperco Conventional Coil Spring 5.5in ID 9.5in Tall 400 lb/in Rate — Universal Racing Suspension

SKU: BJRF_18Z0400
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About Hyperco Hyperco engineers high-quality automotive parts and accessories trusted ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hyperco

Hyperco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hyperco lineup with fast shipping and expert fitment support — order with confidence.

Precision Engineering with Hyperco 400 lb/in Coil Springs

Experience superior handling and consistent performance with the Hyperco 5.5in ID conventional coil spring. Designed for demanding racing environments, this 9.5-inch tall spring features a 400 lb/in rate, providing the perfect balance of stiffness and travel for your front suspension setup. Whether you are dialing in your chassis for track days or competitive circuit racing, Hyperco’s industry-leading manufacturing ensures minimal rate deviation and long-lasting durability.

Technical Specifications

  • Spring Rate: 400 lb/in
  • Inside Diameter: 5.5 inches
  • Free Length: 9.5 inches
  • Material: High-tensile steel
  • Finish: Durable silver powder coat
  • Application: Front suspension

These springs are engineered to resist sagging and maintain their rate under extreme thermal cycles, ensuring your vehicle's geometry remains predictable through every turn. The conventional design allows for seamless integration into most standard coil-over setups, making it a versatile choice for custom builds and professional race cars alike. By reducing unsprung weight and improving response time, you gain the competitive edge needed to shave seconds off your lap times. Trust the experts at GGCRACING for your high-performance suspension needs.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hyperco

Hyperco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hyperco lineup with fast shipping and expert fitment support — order with confidence.

Precision Engineering with Hyperco 400 lb/in Coil Springs

Experience superior handling and consistent performance with the Hyperco 5.5in ID conventional coil spring. Designed for demanding racing environments, this 9.5-inch tall spring features a 400 lb/in rate, providing the perfect balance of stiffness and travel for your front suspension setup. Whether you are dialing in your chassis for track days or competitive circuit racing, Hyperco’s industry-leading manufacturing ensures minimal rate deviation and long-lasting durability.

Technical Specifications

  • Spring Rate: 400 lb/in
  • Inside Diameter: 5.5 inches
  • Free Length: 9.5 inches
  • Material: High-tensile steel
  • Finish: Durable silver powder coat
  • Application: Front suspension

These springs are engineered to resist sagging and maintain their rate under extreme thermal cycles, ensuring your vehicle's geometry remains predictable through every turn. The conventional design allows for seamless integration into most standard coil-over setups, making it a versatile choice for custom builds and professional race cars alike. By reducing unsprung weight and improving response time, you gain the competitive edge needed to shave seconds off your lap times. Trust the experts at GGCRACING for your high-performance suspension needs.

Product Details

Product Description

About Hyperco

Hyperco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hyperco lineup with fast shipping and expert fitment support — order with confidence.

Precision Engineering with Hyperco 400 lb/in Coil Springs

Experience superior handling and consistent performance with the Hyperco 5.5in ID conventional coil spring. Designed for demanding racing environments, this 9.5-inch tall spring features a 400 lb/in rate, providing the perfect balance of stiffness and travel for your front suspension setup. Whether you are dialing in your chassis for track days or competitive circuit racing, Hyperco’s industry-leading manufacturing ensures minimal rate deviation and long-lasting durability.

Technical Specifications

  • Spring Rate: 400 lb/in
  • Inside Diameter: 5.5 inches
  • Free Length: 9.5 inches
  • Material: High-tensile steel
  • Finish: Durable silver powder coat
  • Application: Front suspension

These springs are engineered to resist sagging and maintain their rate under extreme thermal cycles, ensuring your vehicle's geometry remains predictable through every turn. The conventional design allows for seamless integration into most standard coil-over setups, making it a versatile choice for custom builds and professional race cars alike. By reducing unsprung weight and improving response time, you gain the competitive edge needed to shave seconds off your lap times. Trust the experts at GGCRACING for your high-performance suspension needs.

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