1-844-F1PARTS | 1-844-317-2787 | sales@formularaceparts.com | About | Contact

1-844-F1PARTS | 1-844-317-2787
sales@formularaceparts.com | About | Contact

Hyperco 2.5" I.D. x 12" Free Length Coilover Spring, 85-850lbs/in Rate (Choose Rate)
Hyperco 2.5" I.D. x 12" Free Length Coilover Spring, 85-850lbs/in Rate (Choose Rate) - Image 2
Hyperco 2.5" I.D. x 12" Free Length Coilover Spring, 85-850lbs/in Rate (Choose Rate) - Image 3

Hyperco 2.5″ I.D. x 12″ Free Length Coilover Spring, 85-850lbs/in Rate (Choose Rate)

SKU: HYP-1812B Categories: , Tags: , , , , , , , Brand:

$85.99

Hyperco 2.5″ I.D. x 12″ Free Length Coilover Springs

Hyperco high-performance coil-over springs, or “Hypercoils” are the benchmark in motorsport suspension. These 2.5″ (63.5 mm) inside diameter, 12″ (304.8 mm) free length springs (Hyperco B series) are precision CNC-wound from premium high-tensile alloy steel and 100% load-tested for accurate, repeatable spring rates that hold true throughout their travel — so the rate on the label is the rate on the car.

Compared to conventional suspension springs, Hyperco coil-over springs provide more usable deflection and weigh less, reducing unsprung and overall vehicle weight. The 2.5″ I.D. suits coilover kits and threaded-body shocks built around a 2.5″ I.D. spring seat (verify your perch/slider).

Choose Your Spring Rate

Select your required spring rate from the dropdown. This 2.5″ x 12″ family is offered in rates from 85 lbs/in (15 N/mm) up through 850 lbs/in (149 N/mm). Use the rate specified by your chassis setup sheet or suspension tuner. Each spring is sold individually; most applications use them in matched pairs.

Specifications by Rate (Imperial & Metric)

All springs: 2.5″ (63.5 mm) I.D., 12″ (304.8 mm) free length, B series, blue powder-coat finish. Deflection, max load, outside diameter, and solid height vary by rate:

SKU Rate (lbs/in) Rate (N/mm) Deflection (in) Deflection (mm) Max Load (lb) Max Load (kg) O.D. (in) O.D. (mm) Solid Ht. (in) Solid Ht. (mm)
1812B085 85 14.9 9.236 234.6 785 356 3.389 86.1 2.764 70.2
1812B095 95 16.6 9.124 231.7 867 393 3.389 86.1 2.876 73.1
1812B0110 110 19.3 9.046 229.8 995 451 3.52 89.4 2.954 75.0
1812B0125 125 21.9 8.84 224.5 1105 501 3.54 89.9 3.16 80.3
1812B0150 150 26.3 8.695 220.9 1304 591 3.536 89.8 3.305 83.9
1812B0162 162 28.4 8.506 216.1 1378 625 3.519 89.4 3.494 88.7
1812B0175 175 30.6 8.477 215.3 1483 673 3.515 89.3 3.523 89.5
1812B0185 185 32.4 8.403 213.4 1555 705 3.531 89.7 3.597 91.4
1812B0200 200 35.0 8.313 211.2 1663 754 3.641 92.5 3.687 93.6
1812B0225 225 39.4 8.209 208.5 1847 838 3.725 94.6 3.791 96.3
1812B0250 250 43.8 7.995 203.1 1998 906 3.638 92.4 4.005 101.7
1812B0275 275 48.2 7.969 202.4 2192 994 3.818 97.0 4.031 102.4
1812B0300 300 52.5 7.965 202.3 2389 1084 3.949 100.3 4.035 102.5
1812B0325 325 56.9 7.781 197.6 2529 1147 3.876 98.5 4.219 107.2
1812B0350 350 61.3 7.658 194.5 2680 1216 3.904 99.2 4.342 110.3
1812B0375 375 65.7 7.579 192.5 2842 1289 3.913 99.4 4.421 112.3
1812B0400 400 70.1 7.33 186.2 2931 1329 3.666 93.1 4.67 118.6
1812B0425 425 74.4 7.022 178.4 2984 1354 3.753 95.3 4.978 126.4
1812B0450 450 78.8 7.143 181.4 3215 1458 3.813 96.9 4.857 123.4
1812B0475 475 83.2 7.038 178.8 3342 1516 3.728 94.7 4.962 126.0
1812B0500 500 87.6 6.859 174.2 3430 1556 3.741 95.0 5.141 130.6
1812B0550 550 96.3 6.974 177.1 3835 1740 3.963 100.7 5.026 127.7
1812B0600 600 105.1 6.624 168.2 3974 1803 3.782 96.1 5.376 136.6
1812B0650 650 113.8 6.432 163.4 4181 1896 3.833 97.4 5.568 141.4
1812B0700 700 122.6 6.661 169.2 4662 2115 4.053 102.9 5.339 135.6
1812B0750 750 131.3 6.523 165.7 4892 2219 4.066 103.3 5.477 139.1
1812B0800 800 140.1 6.321 160.6 5056 2293 3.946 100.2 5.679 144.2
1812B0850 850 148.9 6.259 159.0 5320 2413 3.866 98.2 5.741 145.8

Metric values are converted from Hyperco’s published imperial specifications (1 lb/in = 0.175 N/mm; 1 in = 25.4 mm; 1 lb = 0.454 kg) and rounded.

Features

  • Nominal 2.5″ (63.5 mm) inside diameter, 12″ (304.8 mm) free length
  • Hyperco B series, blue powder-coat finish
  • Precision CNC-wound, 100% rate-tested and validated
  • High-tensile alloy steel; corrosion-resistant finish
  • Lifetime warranty against loss of free height beyond Hyperco spec
  • Proudly made in the USA — trusted in NASCAR, IndyCar, and pro road racing

Need a rate not shown, a different free length or I.D.? Contact us — we can get the full Hyperco range.

SKU: HYP-1812B Categories: , Tags: , , , , , , , Brand:

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