Metric Coilover Springs


Metric Coilover Springs
More stroke, increased traction and handling, Less Un-sprung weight. The only thing you will be losing is lap time.

Swift's innovative designs have made us a staple in the performance tuning world. Our products are the result of over 90 years of experience in industrial spring manufacturing. Our engineers have spent countless hours developing and re-developing our springs, in order to create a product that is light, durable, and compliant, while still maintaining linear spring rates.

Many enthusiasts will swap springs from brand to brand with the only noticeable difference being a stiffer or softer ride. But what if a spring could offer a noticeable increase in traction, smoother weight transfer, better ride quality, lower tire temperatures, and a more predictable feel? The engineers at Swift have taken that "what if" and turned it into reality.

All Swift Springs are manufactured using( H5S.TW.) which is far superior to silicone chrome steel and allows us to wind our springs with less coils, resulting in reduced un-sprung weight and increased stroke.

Since the metric system is used widely in the sport compact and road race market, we have introduced the metric line of coilover springs to reduce confusion and to better cater to our customer's needs.

Our metric coilover springs come in various sizes with inner diameters ranging from 60mm (2.25in) to 70mm (2.75in), spring lengths from 127mm (5in) to 280mm (11in), and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs). Whether you are looking for a comfortable ride for your commuter or a more aggressive setup for your race car, we have the right spring for your application!



ID 60MM (2.37") - 4" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z60-102-180 18.0 2.0 2.2 2,183
Z60-102-200 20.0 1.9 2.1 2,337
Z60-102-220 22.0 1.9 2.0 2,522
Z60-102-240 24.0 1.9 2.0 2,698
Z60-102-260 26.0 1.8 2.0 2,923
Z60-102-280 28.0 1.7 2.0 3,148
Z60-102-300 30.0 1.7 2.0 3,307
Z60-102-320 32.0 1.7 2.0 3,527
Z60-102-340 34.0 1.7 1.9 3,598


ID 60MM (2.37") - 5" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z60-127-080 8.0 2.8 3.1 1,407
Z60-127-100 10.0 2.7 3.1 1,720
Z60-127-110 11.0 2.7 3.0 1,819
Z60-127-120 12.0 2.6 3.0 1,984
Z60-127-130 13.0 2.6 2.9 2,092
Z60-127-140 14.0 2.5 2.9 2,253
Z60-127-150 15.0 2.5 2.8 2,348
Z60-127-160 16.0 2.4 2.8 2,469
Z60-127-170 17.0 2.4 2.7 2,586
Z60-127-180 18.0 2.3 2.7 2,698
Z60-127-200 20.0 2.3 2.6 2,910
Z60-127-220 22.0 2.2 2.6 3,250
Z60-127-240 24.0 2.1 2.6 3,492
Z60-127-260 26.0 2.1 2.5 3,668
Z60-127-280 28.0 2.0 2.4 3,827
Z60-127-300 30.0 2.0 2.4 4,034
Z60-127-320 32.0 2.0 2.3 4,162
Z60-127-340 34.0 1.9 2.3 4,422


ID 60MM (2.37") - 6" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z60-152-040 4.0 4.0 4.1 924
Z60-152-050 5.0 3.7 4.1 1,136
Z60-152-060 6.0 3.7 3.9 1,295
Z60-152-070 7.0 3.5 3.8 1,485
Z60-152-080 8.0 3.3 3.8 1,691
Z60-152-090 9.0 3.1 3.7 1,889
Z60-152-100 10.0 2.9 3.8 2,116
Z60-152-110 11.0 2.8 3.8 2,338
Z60-152-120 12.0 2.8 3.7 2,503
Z60-152-130 13.0 2.7 3.6 2,654
Z60-152-140 14.0 2.7 3.6 2,790
Z60-152-150 15.0 2.8 3.4 2,847
Z60-152-160 16.0 2.7 3.4 3,019
Z60-152-180 18.0 2.6 3.4 3,413
Z60-152-200 20.0 2.5 3.2 3,620
Z60-152-220 22.0 2.5 3.1 3,866
Z60-152-240 24.0 2.4 3.1 4,175
Z60-152-260 26.0 2.3 3.1 4,465
Z60-152-280 28.0 2.3 3.0 4,735
Z60-152-300 30.0 2.2 2.8 4,709
Z60-152-320 32.0 2.1 2.8 5,051
Z60-152-340 34.0 2.2 2.6 4,932


ID 60MM (2.37") - 7" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z60-178-040 4.0 4.6 4.7 1,050
Z60-178-050 5.0 4.4 4.5 1,269
Z60-178-060 6.0 4.1 4.5 1,517
Z60-178-070 7.0 3.8 4.5 1,781
Z60-178-080 8.0 3.7 4.4 1,954
Z60-178-090 9.0 3.4 4.4 2,234
Z60-178-100 10.0 3.3 4.4 2,458
Z60-178-110 11.0 3.2 4.3 2,668
Z60-178-120 12.0 3.1 4.3 2,862
Z60-178-130 13.0 3.2 4.1 2,978
Z60-178-140 14.0 3.1 4.1 3,204
Z60-178-150 15.0 3.0 4.0 3,353
Z60-178-160 16.0 3.0 4.0 3,559
Z60-178-180 18.0 2.8 4.0 4,036
Z60-178-200 20.0 2.8 3.9 4,405
Z60-178-220 22.0 2.8 3.7 4,511
Z60-178-240 24.0 2.7 3.6 4,894


ID 60MM (2.37") - 8" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z60-203-040 4.0 5.0 5.3 1,198
Z60-203-050 5.0 4.9 5.1 1,421
Z60-203-060 6.0 4.3 5.2 1,743
Z60-203-070 7.0 4.1 5.2 2,052
Z60-203-080 8.0 3.9 5.1 2,307
Z60-203-090 9.0 3.7 5.1 2,585
Z60-203-100 10.0 3.5 5.1 2,853
Z60-203-110 11.0 3.5 5.0 3,104
Z60-203-120 12.0 3.4 4.9 3,273
Z60-203-130 13.0 3.4 4.9 3,557
Z60-203-140 14.0 3.3 4.8 3,762
Z60-203-160 16.0 3.2 4.7 4,194
Z60-203-180 18.0 3.0 4.6 4,671
Z60-203-200 20.0 2.9 4.6 5,207


ID 60MM (2.37") - 9" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z60-228-040 4.0 5.4 6.0 1,339
Z60-228-050 5.0 5.3 5.7 1,594
Z60-228-060 6.0 4.9 5.6 1,878
Z60-228-070 7.0 4.8 5.4 2,127
Z60-228-080 8.0 4.5 5.5 2,450
Z60-228-090 9.0 4.3 5.5 2,760
Z60-228-100 10.0 4.2 5.3 2,985
Z60-228-110 11.0 3.9 5.4 3,322
Z60-228-120 12.0 4.0 5.1 3,431
Z60-228-130 13.0 3.9 5.0 3,639
Z60-228-140 14.0 3.9 4.8 3,772
Z60-228-150 15.0 3.9 4.7 3,935
Z60-228-160 16.0 3.9 4.6 4,113


ID 65MM (2.56") - 4" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-102-180 18.0 2.0 2.2 2,222
Z65-102-200 20.0 2.0 2.2 2,425
Z65-102-220 22.0 1.9 2.2 2,668
Z65-102-240 24.0 1.9 2.1 2,804
Z65-102-260 26.0 1.9 2.0 2,981
Z65-102-280 28.0 1.8 2.0 3,210
Z65-102-300 30.0 1.8 2.0 3,307
Z65-102-320 32.0 1.7 2.0 3,527
Z65-102-340 34.0 1.7 1.9 3,673


ID 65MM (2.56") - 5" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-127-080 8.0 2.8 3.3 1,472
Z65-127-100 10.0 2.8 3.1 1,744
Z65-127-120 12.0 2.7 3.1 2,059
Z65-127-140 14.0 2.6 2.9 2,294
Z65-127-160 16.0 2.5 2.9 2,587
Z65-127-180 18.0 2.5 2.8 2,795
Z65-127-200 20.0 2.5 2.6 2,956
Z65-127-220 22.0 2.4 2.6 3,150
Z65-127-240 24.0 2.4 2.5 3,399
Z65-127-260 26.0 2.3 2.5 3,631
Z65-127-280 28.0 2.2 2.5 3,837
Z65-127-300 30.0 2.2 2.5 4,124
Z65-127-320 32.0 2.1 2.5 4,413
Z65-127-340 34.0 2.0 2.4 4,569


ID 65MM (2.56") - 6" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-152-040 4.0 4.1 4.2 939
Z65-152-050 5.0 3.7 4.1 1,159
Z65-152-060 6.0 3.7 4.0 1,356
Z65-152-070 7.0 3.5 3.9 1,531
Z65-152-080 8.0 3.3 3.9 1,748
Z65-152-090 9.0 3.1 3.9 1,988
Z65-152-100 10.0 2.9 4.0 2,224
Z65-152-110 11.0 2.8 3.9 2,418
Z65-152-120 12.0 2.8 3.9 2,595
Z65-152-130 13.0 2.8 3.8 2,760
Z65-152-140 14.0 2.8 3.6 2,858
Z65-152-150 15.0 2.7 3.6 3,052
Z65-152-160 16.0 2.7 3.5 3,178
Z65-152-180 18.0 2.5 3.6 3,659
Z65-152-200 20.0 2.4 3.6 4,065
Z65-152-220 22.0 2.4 3.5 4,370
Z65-152-240 24.0 2.3 3.5 4,730
Z65-152-260 26.0 2.2 3.5 5,073
Z65-152-280 28.0 2.2 3.4 5,389
Z65-152-300 30.0 2.3 3.3 5,470
Z65-152-320 32.0 2.2 3.3 5,848
Z65-152-340 34.0 2.3 3.1 5,839


ID 65MM (2.56") - 7" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-178-040 4.0 4.7 4.8 1,074
Z65-178-050 5.0 4.3 4.7 1,329
Z65-178-060 6.0 4.2 4.6 1,561
Z65-178-070 7.0 3.7 4.7 1,836
Z65-178-080 8.0 3.7 4.6 2,064
Z65-178-090 9.0 3.5 4.6 2,314
Z65-178-100 10.0 3.4 4.6 2,551
Z65-178-110 11.0 3.3 4.5 2,777
Z65-178-120 12.0 3.3 4.4 2,934
Z65-178-130 13.0 3.1 4.4 3,184
Z65-178-140 14.0 3.1 4.3 3,367
Z65-178-150 15.0 3.0 4.3 3,605
Z65-178-160 16.0 3.0 4.2 3,760
Z65-178-180 18.0 2.9 4.1 4,183
Z65-178-200 20.0 2.8 4.2 4,661
Z65-178-220 22.0 2.7 4.2 5,117
Z65-178-240 24.0 2.7 4.0 5,355
Z65-178-260 26.0 2.6 3.8 5,531
Z65-178-280 28.0 2.6 3.6 5,654


ID 65MM (2.56") - 8" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-203-040 4.0 5.2 5.5 1,228
Z65-203-050 5.0 5.0 5.2 1,468
Z65-203-060 6.0 4.6 5.1 1,730
Z65-203-070 7.0 4.5 5.0 1,965
Z65-203-080 8.0 4.2 5.0 2,259
Z65-203-090 9.0 4.0 5.0 2,540
Z65-203-100 10.0 3.9 4.9 2,756
Z65-203-110 11.0 3.6 5.0 3,063
Z65-203-120 12.0 3.6 4.9 3,299
Z65-203-130 13.0 3.5 4.9 3,594
Z65-203-140 14.0 3.4 4.9 3,806
Z65-203-160 16.0 3.4 4.6 4,095
Z65-203-180 18.0 3.2 4.6 4,667
Z65-203-200 20.0 3.1 4.7 5,216
Z65-203-220 22.0 3.1 4.3 5,310
Z65-203-240 24.0 3.0 4.3 5,793


ID 65MM (2.56") - 9" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-228-040 4.0 5.4 6.2 1,399
Z65-228-050 5.0 5.0 6.2 1,744
Z65-228-060 6.0 4.9 5.9 1,989
Z65-228-070 7.0 4.5 6.0 2,350
Z65-228-080 8.0 4.4 5.8 2,607
Z65-228-090 9.0 4.4 5.6 2,829
Z65-228-100 10.0 4.1 5.7 3,192
Z65-228-120 12.0 4.0 5.4 3,632
Z65-228-140 14.0 3.7 5.5 4,278
Z65-228-160 16.0 3.6 5.3 4,716


ID 65MM (2.56") - 10" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-254-030 3.0 6.3 7.2 1,204
Z65-254-040 4.0 6.2 6.7 1,494
Z65-254-050 5.0 5.9 6.4 1,799
Z65-254-060 6.0 5.7 6.2 2,091
Z65-254-070 7.0 5.2 6.3 2,486
Z65-254-080 8.0 4.9 6.3 2,813
Z65-254-090 9.0 4.9 6.1 3,056
Z65-254-100 10.0 4.6 6.2 3,461
Z65-254-120 12.0 4.4 6.0 4,024
Z65-254-140 14.0 3.9 6.2 4,836


ID 65MM (2.56") - 11" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z65-280-030 3.0 6.9 7.8 1,157
Z65-280-035 3.5 6.6 7.8 1,281
Z65-280-040 4.0 6.3 7.7 1,402
Z65-280-045 4.5 6.0 7.6 1,508
Z65-280-050 5.0 5.9 7.4 1,664
Z65-280-055 5.5 5.8 7.4 1,782
Z65-280-060 6.0 5.7 7.2 1,918
Z65-280-065 6.5 5.5 7.2 2,006
Z65-280-070 7.0 5.4 7.2 2,099
Z65-280-080 8.0 5.2 7.1 2,328
Z65-280-090 9.0 5.1 6.8 2,579
Z65-280-100 10.0 4.9 6.8 2,734


ID 70MM (2.76") - 6" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z70-152-040 4.0 3.8 4.4 996
Z70-152-050 5.0 3.7 4.3 1,194
Z70-152-060 6.0 3.5 4.2 1,403
Z70-152-070 7.0 3.5 4.1 1,593
Z70-152-080 8.0 3.3 4.1 1,820
Z70-152-090 9.0 3.3 3.9 1,968
Z70-152-100 10.0 3.1 3.9 2,169
Z70-152-120 12.0 3.1 3.7 2,492
Z70-152-140 14.0 2.9 3.6 2,858
Z70-152-160 16.0 2.8 3.6 3,185
Z70-152-180 18.0 2.7 3.5 3,544
Z70-152-200 20.0 2.6 3.5 3,942


ID 70MM (2.76") - 7" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z70-178-040 4.0 4.4 5.1 1,146
Z70-178-050 5.0 4.3 4.9 1,378
Z70-178-060 6.0 4.2 4.8 1,598
Z70-178-070 7.0 3.9 4.7 1,849
Z70-178-080 8.0 4.0 4.5 2,009
Z70-178-090 9.0 3.7 4.6 2,298
Z70-178-100 10.0 3.6 4.5 2,493
Z70-178-120 12.0 3.4 4.4 2,934
Z70-178-140 14.0 3.2 4.3 3,377
Z70-178-160 16.0 3.1 4.2 3,785
Z70-178-180 18.0 3.0 4.1 4,147
Z70-178-200 20.0 2.9 4.1 4,630


ID 70MM (2.76") - 8" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z70-203-040 4.0 5.1 5.9 1,318
Z70-203-050 5.0 5.0 5.7 1,590
Z70-203-060 6.0 4.6 5.4 1,806
Z70-203-070 7.0 4.5 5.4 2,113
Z70-203-080 8.0 4.1 5.2 2,319
Z70-203-090 9.0 4.1 5.3 2,671
Z70-203-100 10.0 3.9 5.1 2,868
Z70-203-120 12.0 3.8 5.1 3,431
Z70-203-140 14.0 3.7 4.9 3,870
Z70-203-160 16.0 3.6 4.7 4,219
Z70-203-180 18.0 3.5 4.5 4,579
Z70-203-200 20.0 3.4 4.4 4,965


ID 70MM (2.76") - 9" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z70-228-040 4.0 5.4 6.5 1,448
Z70-228-050 5.0 5.0 6.4 1,780
Z70-228-060 6.0 4.9 6.1 2,045
Z70-228-070 7.0 4.7 6.0 2,340
Z70-228-080 8.0 4.6 5.8 2,603
Z70-228-090 9.0 4.6 5.6 2,833
Z70-228-100 10.0 4.4 5.5 3,089
Z70-228-120 12.0 4.3 5.2 3,521
Z70-228-140 14.0 4.1 5.1 4,012


ID 70MM (2.76") - 10" Length

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
kgf/mm inch inch lbs
Z70-254-030 3.0 6.4 7.3 1,223
Z70-254-040 4.0 5.8 7.2 1,608
Z70-254-050 5.0 5.5 7.0 1,950
Z70-254-060 6.0 5.3 6.8 2,283
Z70-254-070 7.0 5.2 6.6 2,573
Z70-254-080 8.0 4.9 6.5 2,921
Z70-254-090 9.0 4.8 6.4 3,242
Z70-254-100 10.0 4.7 6.2 3,483
Z70-254-120 12.0 4.6 5.9 3,992