Product Details
Hyperco Metric Series coilover springs are engineered for European and JDM platforms running 60mm ID coilover dampers — KW, Bilstein, H&R, Öhlins, HKS, TEIN, and most factory-equipped track-spec cars. Expect tighter rate tolerance, longer fatigue life, and less sag than OE replacement springs — the right spring for drivers running back-to-back track days or time-attack programs.
Pick free length and spring rate from the variant dropdown; each spring is sold individually and built in the USA. Lifetime warranty against breakage, paired perfectly with Hyperco Helper Springs or a Hydraulic Spring Perch for multi-stage corner-weight tuning.
Discontinued - Final Sale
Hyperco has discontinued this part. We are selling the remaining stock and it will not be restocked once it is gone. Because of that, all sales on this item are final: it cannot be returned or exchanged.
About Hyperco
Hyperco has engineered precision suspension springs in the USA since 1970, supplying teams in Formula 1, IndyCar, NASCAR, Pirelli World Challenge, and top drift and time-attack programs. Every spring is wound from proprietary high-tensile steel and backed by a lifetime warranty against breakage.
Specifications
| SKU | Series - ID | Free Length (in) | Rate (lbs/in) | Deflection (in) | Load (lb) | Outside Diameter (in) | Solid Height (in) |
| 185M0550 | M - 60 | 5 | 550 | 3.106 | 1708 | 3.362 | 1.894 |
| 185M0650 | M - 60 | 5 | 650 | 2.997 | 1948 | 3.445 | 2.003 |
| 185M0750 | M - 60 | 5 | 750 | 2.917 | 2188 | 3.478 | 2.083 |
| 186M0350 | M - 60 | 6 | 350 | 3.851 | 1348 | 3.205 | 2.149 |
| 186M0450 | M - 60 | 6 | 450 | 3.641 | 1638 | 3.267 | 2.359 |
| 186M0500 | M - 60 | 6 | 500 | 3.662 | 1830 | 3.383 | 2.338 |
| 186M0550 | M - 60 | 6 | 550 | 3.658 | 2011 | 3.39 | 2.342 |
| 186M0600 | M - 60 | 6 | 600 | 3.566 | 2140 | 3.371 | 2.434 |
| 186M0650 | M - 60 | 6 | 650 | 3.578 | 2325 | 3.469 | 2.422 |
| 186M0700 | M - 60 | 6 | 700 | 3.407 | 2384 | 3.512 | 2.593 |
| 186M0800 | M - 60 | 6 | 800 | 3.351 | 2680 | 3.46 | 2.649 |
| 186M0900 | M - 60 | 6 | 900 | 3.335 | 3001 | 3.539 | 2.665 |
| 186M1100 | M - 60 | 6 | 1100 | 3.023 | 3325 | 3.505 | 2.977 |
| 18170M080 | M - 60 | 6.6929 | 457.1429 | 4.252 | 1942 | 3.535 | 2.441 |
| 18170M090 | M - 60 | 6.6929 | 514.2857 | 4.198 | 2156 | 3.607 | 2.495 |
| 18170M100 | M - 60 | 6.6929 | 571.4286 | 4.094 | 2338 | 3.582 | 2.599 |
| 18170M110 | M - 60 | 6.6929 | 628.5714 | 3.982 | 2500 | 3.574 | 2.711 |
| 18170M120 | M - 60 | 6.6929 | 685.7143 | 3.95 | 2707 | 3.64 | 2.743 |
| 18170M130 | M - 60 | 6.6929 | 742.8571 | 3.89 | 2887 | 3.67 | 2.803 |
| 18170M140 | M - 60 | 6.6929 | 800 | 3.816 | 3051 | 3.663 | 2.877 |
| 18170M150 | M - 60 | 6.6929 | 857.1429 | 3.766 | 3225 | 3.694 | 2.927 |
| 187M0350 | M - 60 | 7 | 350 | 4.667 | 1633 | 3.425 | 2.333 |
| 187M0450 | M - 60 | 7 | 450 | 4.282 | 1926 | 3.299 | 2.718 |
| 187M0500 | M - 60 | 7 | 500 | 4.303 | 2151 | 3.418 | 2.697 |
| 187M0550 | M - 60 | 7 | 550 | 3.942 | 2168 | 3.413 | 3.058 |
| 187M0600 | M - 60 | 7 | 600 | 4.055 | 2433 | 3.373 | 2.945 |
| 187M0650 | M - 60 | 7 | 650 | 3.985 | 2590 | 3.395 | 3.015 |
| 187M0700 | M - 60 | 7 | 700 | 4.021 | 2814 | 3.51 | 2.979 |
| 187M0750 | M - 60 | 7 | 750 | 3.942 | 2956 | 3.454 | 3.058 |
| 187M0800 | M - 60 | 7 | 800 | 3.865 | 3092 | 3.449 | 3.135 |
| 187M0900 | M - 60 | 7 | 900 | 3.511 | 3160 | 3.505 | 3.489 |
| 187M0950 | M - 60 | 7 | 950 | 3.725 | 3539 | 3.53 | 3.275 |
| 187M1000 | M - 60 | 7 | 1000 | 3.836 | 3836 | 3.85 | 3.164 |
| 188M0350 | M - 60 | 8 | 350 | 4.897 | 1714 | 3.283 | 3.103 |
| 188M0450 | M - 60 | 8 | 450 | 4.97 | 2236 | 3.49 | 3.03 |
| 188M0550 | M - 60 | 8 | 550 | 4.547 | 2501 | 3.395 | 3.453 |
| 188M0600 | M - 60 | 8 | 600 | 4.657 | 2794 | 3.566 | 3.343 |
| 188M0700 | M - 60 | 8 | 700 | 4.266 | 2985 | 3.467 | 3.734 |
| 188M0800 | M - 60 | 8 | 800 | 4.16 | 3327 | 3.505 | 3.84 |
| 188M0900 | M - 60 | 8 | 900 | 3.71 | 3339 | 3.565 | 4.29 |
| 188M1000 | M - 60 | 8 | 1000 | 4.169 | 4169 | 3.669 | 3.831 |
| 189M0600 | M - 60 | 9 | 600 | 5.196 | 3117 | 3.816 | 3.804 |
| 189M0650 | M - 60 | 9 | 650 | 5.141 | 3341 | 3.824 | 3.859 |
| 189M0700 | M - 60 | 9 | 700 | 5.071 | 3550 | 3.832 | 3.929 |
| 189M0750 | M - 60 | 9 | 750 | 4.962 | 3721 | 3.831 | 4.038 |
| 189M0800 | M - 60 | 9 | 800 | 4.986 | 3988 | 3.822 | 4.014 |
| 189M0850 | M - 60 | 9 | 850 | 4.877 | 4145 | 3.819 | 4.123 |
| 189M0900 | M - 60 | 9 | 900 | 4.82 | 4338 | 3.845 | 4.18 |
| 186M1300 | M - 60 | 6 | 1300 |