/Dual Rate Springs
Dual Rate Springs 2017-08-08T11:05:16+00:00

Dual Rate Coil-Over Springs

Hyperco’s line of Dual Rate UHT Coil-Over Springs takes competition coil-over design to the next level.  These springs essentially provide the performance of an optimized stacked spring set-up, but in a single spring. The Dual Rate UHT Spring combines a relatively low initial spring rate, designed to absorb minor undulations and increase grip with a precise transition point and transition range to a secondary higher spring rate to improve roll control during cornering.

The precise placement of the transition range in the total spring displacement enables accurate shock valving because the initial rate is very linear and the transition range to the secondary rate is quite short.

Circle Track Racing Suspension Components

Basic Specifications of Dual Rate Coil-Over Springs

  • Free Length Range: 12″ to 16″
  • Spring Rates: 138#/in to 700#/in
  • Material: High tensile chrome silicon
  • Finish: Hyperco dark blue powder coat
  • Spring Design: Ultra High Travel (UHT)

Catalog: Page 10

12B0200/425UHT Dual Rate Suspension Spring

CATALOG PRODUCTS

Free Length (in) ID (in) Ends OD (in) Middle Initial Rate (lbs/in) Secondary Rate (lbs/in) Rate Transition Point (lbs of load) Deflection to Transition Point (in) Total Deflection (in) Solid Height (in) Solid Load (lbs) Weight (lbs)
12 2.550 4.206 175 350 625 3.570 8.088 3.912 2194 4.9
Free Length (in) ID (in) Ends OD (in) Middle Initial Rate (lbs/in) Secondary Rate (lbs/in) Rate Transition Point (lbs of load) Deflection to Transition Point (in) Total Deflection (in) Solid Height (in) Solid Load (lbs) Weight (lbs)
12 2.550 4.293 200 425 625 3.125 7.902 4.098 2257 5.45
Free Length (in) ID (in) Ends OD (in) Middle Initial Rate (lbs/in) Secondary Rate (lbs/in) Rate Transition Point (lbs of load) Deflection to Transition Point (in) Total Deflection (in) Solid Height (in) Solid Load (lbs) Weight (lbs)
12 2.550 4.168 230 700 625 2.720 7.237 4.763 3586 6.35
Free Length (in) ID (in) Ends OD (in) Middle Initial Rate (lbs/in) Secondary Rate (lbs/in) Rate Transition Point (lbs of load) Deflection to Transition Point (in) Total Deflection (in) Solid Height (in) Solid Load (lbs) Weight (lbs)
14 2.550 4.154 175 350 625 3.570 8.932 5.068 2510 6.5
Free Length (in) ID (in) Ends OD (in) Middle Initial Rate (lbs/in) Secondary Rate (lbs/in) Rate Transition Point (lbs of load) Deflection to Transition Point (in) Total Deflection (in) Solid Height (in) Solid Load (lbs) Weight (lbs)
14 2.550 4.293 200 425 625 3.125 8.639 5.361 2853 7.4
Free Length (in) ID (in) Ends OD (in) Middle Initial Rate (lbs/in) Secondary Rate (lbs/in) Rate Transition Point (lbs of load) Deflection to Transition Point (in) Total Deflection (in) Solid Height (in) Solid Load (lbs) Weight (lbs)
14 2.550 4.206 230 700 625 2.720 8.556 5.444 4410 7.5
Free Length (in) ID (in) Ends OD (in) Middle Initial Rate (lbs/in) Secondary Rate (lbs/in) Rate Transition Point (lbs of load) Deflection to Transition Point (in) Total Deflection (in) Solid Height (in) Solid Load (lbs) Weight (lbs)
16 2.550 4.374 138 375 625 4.530 9.775 6.225 2467 8.6
  • Spring Rubbers
    • All of our dual rate springs have been designed in a low-stressed condition to permit the use of spring rubbers to custom tune the rates to your specific driving requirements, without having to worry about over-stressing the springs.