Standard Coilover Springs.

Increase traction. Less un-sprung mass. More Stroke. Increased handling.

As you might know, the United States is the largest racer populated country in the world. Through our experiences from extensive testing in world class racing in Europe and Asia, we have great confidence that we can provide the same results in the US. 

Swift specifically designed a standard measurement race springs to accommodate American race industries including...
Slight difference in design than our metric coilover springs.

By knowing the main characteristics that American racer demands, we designed and engineered the standard measurement springs based on data that we had collected through racers that are at the top of their sport.

Turning 'what if?' into reality.

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. 

Superior Material.

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

Understanding spring deflection.

Most of Swift 10″ and longer springs (Excluding the Drag racing springs and Conventional springs) are barrel design; the design is to solve all spring Deflection (bowing) problems. With bowing springs, you can expect spring rate inconsistency, and rubbing against the shock body that would lead to damage on the shock adjusting perch thread. 

One approach to assess spring deflection would be to increase the number of coils on the springs. With more coils on the spring, you will experience less bowing motion. This is the easy and cheaper method to solve the issue. But the downside of this method is a decrease in spring stroke, increase in un-sprung mass, and will affect the overall movement of other suspension components.

Barrel Design for ease and consistency.

Unlike others, Swift designed barrel springs with ease and consistency of vehicle setup in mind, our barrel spring design has a maximum of 4″ outer diameter (except B5 and B4 series) (Usually located on the center coil of the spring). Because most other manufacturers do not design their barrel springs with this rule, most of their barrel springs outside diameter will differ from one rate to another. This creates a hard time for racers especially with tight clearances to test and see which rates will fit and which rate does not. A heavier rate spring can interfere with the suspension A-arm or other suspension components.

Bulletproof series Springs.

[PART NUMBERS ENDING IN 'BP']

Purpose built for those of you putting more stress on a spring than how is conventionally used. We sought after a new approach in development from our regular suspension spring.

After years of research and development, Swift Springs would like to proudly present the BP Spring for circle track racing. Specifically designed to meet and surpass the unique needs of Circle Track Racers. Although specially made, these springs are constructed with the same SWIFT SPRINGS philosophy and that is to be responsive and increase overall traction.

DUE TO CONTINUED ENGINEERING ADVANCES, PRODUCT SPECIFICATION MAY CHANGE WITHOUT NOTICE.

Barrel Type Quarter Midget
4.5" Length (ID 1.63)

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
045-163-070B 70 2.6 3.5 245
045-163-080B 80 2.6 3.5 277
045-163-090B 90 2.4 3.4 308
045-163-100B 100 2.4 3.4 339
045-163-110B 110 2.4 3.3 368
045-163-120B 120 2.4 3.3 397
045-163-130B 130 2.4 3.2 420
045-163-140B 140 2.4 3.2 452
045-163-150B 150 2.4 3.2 478

Barrel Type Quarter Midget 4.5″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
045-163-070B 70 2.6 3.5 245
045-163-080B 80 2.6 3.5 277
045-163-090B 90 2.4 3.4 308
045-163-100B 100 2.4 3.4 339
045-163-110B 110 2.4 3.3 368
045-163-120B 120 2.4 3.3 397
045-163-130B 130 2.4 3.2 420
045-163-140B 140 2.4 3.2 452
045-163-150B 150 2.4 3.2 478
 
Straight Type 8″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
080-188-140 140 4.9 5.4 761
080-188-150 150 4.6 5.6 838
080-188-160 160 4.8 5.3 849
080-188-170 170 4.8 5.2 880
080-188-175 175 4.6 5.2 917
080-188-180 180 4.5 5.3 955
080-188-185 185 4.7 5.2 941
080-188-190 190 4.6 5.2 979
080-188-200 200 4.3 5.3 1,056
080-188-210 210 4.6 5.0 1,056
080-188-220 220 4.3 5.1 1,122
080-188-230 230 4.6 4.8 1,100
080-188-240 240 4.4 4.9 1,177
080-188-250 250 4.2 5.0 1,252
080-188-260 260 4.3 4.8 1,259
080-188-270 270 4.4 4.6 1,257
080-188-275 275 4.3 4.7 1,294
080-188-290 290 4.0 4.8 1,409
080-188-300 300 4.3 4.5 1,356
080-188-325 325 3.9 4.8 1,545
080-188-350 350 4.0 4.6 1,594
Straight Type 10″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
080-188-140 140 4.9 5.4 761
080-188-150 150 4.6 5.6 838
080-188-160 160 4.8 5.3 849
080-188-170 170 4.8 5.2 880
080-188-175 175 4.6 5.2 917
080-188-180 180 4.5 5.3 955
080-188-185 185 4.7 5.2 941
080-188-190 190 4.6 5.2 979
080-188-200 200 4.3 5.3 1,056
080-188-210 210 4.6 5.0 1,056
080-188-220 220 4.3 5.1 1,122
080-188-230 230 4.6 4.8 1,100
080-188-240 240 4.4 4.9 1,177
080-188-250 250 4.2 5.0 1,252
080-188-260 260 4.3 4.8 1,259
080-188-270 270 4.4 4.6 1,257
080-188-275 275 4.3 4.7 1,294
080-188-290 290 4.0 4.8 1,409
080-188-300 300 4.3 4.5 1,356
080-188-325 325 3.9 4.8 1,545
080-188-350 350 4.0 4.6 1,594
  Barrel Type 10″ Length [Outside Diameter is set at 3″]
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-188-100B3 100 6.5 7.5 754
100-188-110B3 110 6.3 7.4 829
100-188-120B3 120 6.2 7.3 877
100-188-130B3 130 6.2 7.0 903
100-188-140B3 140 5.9 7.2 1,009
100-188-150B3 150 6.1 6.9 1,042
100-188-160B3 160 5.7 7.0 1,144
100-188-170B3 170 5.8 6.9 1,157
100-188-180B3 180 5.8 6.7 1,206
100-188-190B3 190 5.9 6.5 1,244
100-188-200B3 200 5.7 6.5 1,317
100-188-220B3 220 5.7 6.4 1,402
100-188-240B3 240 5.6 6.3 1,510
100-188-260B3 260 5.4 6.2 1,612
100-188-280B3 280 5.4 6.1 1,704
100-188-300B3 300 5.1 6.1 1,845
100-188-325B3 325 5.2 5.9 1,905
100-188-350B3 350 5.0 5.7 2,028
 
Straight Type 4″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
040-250-300 300 2.6 2.8 843
040-250-350 350 2.5 2.7 960
040-250-400 400 2.5 2.7 1,066


Straight Type 6″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
060-250-150 150 4.5 4.5 679


Straight Type 8″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
080-250-100 100 5.8 5.8 582
080-250-125 125 5.6 5.6 710
080-250-150 150 5.7 5.7 877
080-250-175 175 5.2 5.7 985
080-250-200 200 5.1 5.8 1,151
080-250-225 225 4.9 5.7 1,280
080-250-250 250 4.8 5.6 1,402
080-250-275 275 4.7 5.5 1,516
080-250-300 300 4.7 5.4 1,620
080-250-350 350 4.6 5.2 1,837
080-250-375 375 4.5 5.2 1,953
080-250-400 400 4.4 5.2 2,066
080-250-425 425 4.3 5.1 2,172
080-250-450 450 4.3 5.1 2,273
080-250-475 475 4.3 5.0 2,371
080-250-500 500 4.2 4.9 2,461
080-250-525 525 4.2 4.8 2,544
080-250-550 550 4.1 4.9 2,679
080-250-600 600 4.0 4.8 2,884
080-250-650 650 4.0 4.6 3,009
080-250-700 700 3.9 4.5 3,180
080-250-900 900 3.7 4.3 3,869
080-250-950 950 3.7 4.2 3,957
080-250-1000 1000 3.6 4.1 4,130
080-250-1100 1100 3.5 3.9 4,339
080-250-1200 1200 3.4 3.9 1,729
080-250-1300 1300 3.2 4.0 5,220
080-250-1400 1400 3.2 3.8 5,298
080-250-1500 1500 3.2 3.5 5,309
080-250-1600 1600 3.0 3.8 6,041


Barrel Type 6″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
060-250-100 B 100 4.7 4.7 467
060-250-125 B 125 4.5 4.5 567
060-250-150 B 150 4.5 4.5 670
060-250-175 B 175 4.4 4.4 774
060-250-200 B 200 4.3 4.3 855
060-250-250 B 250 4.3 4.3 1,067
060-250-300 B 300 4.2 4.2 1,248
060-250-350 B 350 4.1 4.1 1,433


Barrel Type 7″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
070-250-450 B 450 4.4 4.4 1,967
070-250-500 B 500 4.3 4.3 2,146
070-250-550 B 550 4.2 4.2 2,317
070-250-600 B 600 4.1 4.1 2,480
070-250-650 B 650 4.1 4.1 2,687
070-250-700 B 700 4.1 4.1 2,866
070-250-750 B 750 4.0 4.0 2,982


Barrel Type 10″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-250-080 B 80 7.8 7.8 626
100-250-100 B 100 7.6 7.6 765
100-250-125 B 125 7.3 7.3 917
100-250-150 B 150 6.8 8.2 1,152
100-250-160 B 160 6.7 7.6 1,204
100-250-175 B 175 6.5 8.1 1,323
100-250-185 B 185 6.4 7.6 1,397
100-250-200 B 200 6.4 7.9 1,481
100-250-225 B 225 6.3 7.8 1,625
100-250-250 B 250 6.1 7.7 1,783
100-250-275 B 275 5.9 7.7 1,961
100-250-300 B 300 5.8 7.6 2,101
100-250-325 B 325 5.6 7.5 2,266
100-250-350 B 350 5.6 7.4 2,387
100-250-375 B 375 5.6 7.2 2,494
100-250-400 B 400 5.5 7.1 2,633
100-250-425 B 425 5.4 7.0 2,768
100-250-450 B 450 5.3 7.0 2,895
100-250-475 B 475 5.4 6.8 2,955
100-250-500 B 500 5.3 6.7 3,061
100-250-525 B 525 5.2 6.7 3,231
100-250-550 B 550 5.2 6.6 3,324
100-250-600 B 600 5.0 6.5 3,565
100-250-650 B 650 4.9 6.2 3,785
100-250-700 B 700 4.8 6.2 4,079
100-250-750 B 750 4.6 6.2 4,355


Barrel Type 10″ Length Progressive
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-250-500V 200/500 4.7 5.1 1,834
100-250-750V 300/750 3.9 4.4 2,690


Barrel Type 12″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-250-060 B 60 9.6 9.6 575
120-250-090 B 90 9.1 9.1 813
120-250-100 B 100 8.5 9.9 954
120-250-125 B 125 8.2 9.8 1,161
120-250-150 B 150 7.8 9.6 1,364
120-250-160 B 160 7.8 8.8 1,407
120-250-175 B 175 7.7 9.4 1,547
120-250-185 B 185 7.7 9.2 1,612
120-250-200 B 200 7.5 9.2 1,731
120-250-225 B 225 7.4 9.0 1,902
120-250-250 B 250 7.3 8.8 2,051
120-250-275 B 275 7.1 8.7 2,219
120-250-300 B 300 6.9 8.6 2,420
120-250-325 B 325 6.8 8.4 2,567
120-250-350 B 350 6.6 8.4 2,753
120-250-375 B 375 6.5 8.2 2,873
120-250-400 B 400 6.4 8.1 3,039
120-250-450 B 450 6.1 8.1 3,414
120-250-475 B 475 6.0 8.1 3,561
120-250-500 B 500 6.0 7.8 3,612
120-250-525 B 525 6.1 7.4 3,644
120-250-550 B 550 5.8 7.6 3,932
120-250-575 B 575 5.8 7.4 4,036
120-250-600 B 600 5.8 7.3 4,124
120-250-750 B 750 5.4 7.0 4,937


Barrel Type 12″ Length Straight for Spring Rubbers
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-250-175 TH 175 7.2 7.6 1,337
120-250-200 TH 200 7.0 7.6 1,528
120-250-225 TH 225 6.9 7.4 1,674
120-250-250 TH 250 6.6 7.4 1,841


Barrel Type 12″ Length Progressive
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-250-100V 30/100 6.9 7.4 571
120-250-200V 140/200 6.7 8.0 1,453
120-250-225V 140/225 6.6 7.6 1,530
120-250-250V 140/250 6.6 7.2 1,559
120-250-300V 100/300 5.9 6.7 1,448
120-250-400V 150/400 5.7 6.2 1,744
120-250-500V2 200/500 5.5 5.8 2,070


Barrel Type 14″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
140-250-050 B 50 11.3 11.3 562.0
140-250-080 B 80 10.8 10.8 862.0
140-250-100 BP 100 10.8 10.8 1,082
140-250-125 BP 125 10.7 10.7 1,338
140-250-150 BP 150 10.5 10.5 1,570
140-250-165 BP 165 9.8 10.4 1,715
140-250-175 BP 175 9.8 10.3 1,808
140-250-185 BP 185 9.7 10.2 1,889
140-250-200 BP 200 9.7 10.1 2,030
140-250-225 B 225 8.1 10.4 2,209
140-250-250 B 250 7.8 10.3 2,432
140-250-275 B 275 8.0 9.8 2,541
140-250-300 B 300 7.7 9.8 2,777
140-250-325 B 325 7.6 9.6 2,944
140-250-350 B 350 7.3 9.5 3,161
140-250-375 B 375 7.3 9.3 3,301


Barrel Type 14″ Length Progressive
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
140-250-250V 75/250 6.9 7.6 1,334
140-250-300V 100/300 6.7 7.7 1,653


Barrel Type 16″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-250-050 B 50 12.4 12.4 615
160-250-080 B 80 11.6 11.6 935
160-250-100 BP 100 12.4 12.4 1246
160-250-110 BP 110 11.9 11.9 1,308
160-250-125 BP 125 11.1 12.1 1516
160-250-150 BP 150 11.5 12.2 1827
160-250-175 BP 175 11.4 12.0 2094
160-250-200 B 200 9.6 11.5 2,308
160-250-250 B 250 9.2 10.8 2,700
160-250-300 B 300 8.9 10.3 3,081


20″ Length Progressive
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
200-250-150 V 75/150 11.3 12.2 1,398


16″, 18″, + 20″ Length [5.0″ OD on one end]
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
180-2550-050 BP 50 12.4 13.4 670
180-2550-080 BP 80 13.0 14.1 1,133
180-2550-100 BP 100 12.8 13.7 1,369
180-2550-125 BP 125 13.4 13.4 1,680
160-2550-125 BP 125 11.4 12.3 1,537
160-2550-150 BP 150 11.2 11.9 1,786
200-2550-100 BP 100 15.0 15.0 1,515
 
6″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
060-300-350 350 3.7 4.0 1,406


8″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
080-300-200 200 5.0 5.9 1,181
080-300-250 250 4.8 5.7 1,429
080-300-300 300 4.5 5.6 1,689
080-300-350 350 4.4 5.5 1,929
080-300-400 400 4.3 5.4 2,142
080-300-450 450 4.3 5.2 2,337
080-300-500 500 4.1 5.2 2,579
080-300-550 550 4.0 5.0 2,778
080-300-600 600 3.9 5.0 3,000


10″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-300-125 125 7.3 7.3 915
100-300-150 150 7.2 7.2 1,075
100-300-200 200 6.0 7.3 1,457
100-300-250 250 5.7 7.0 1,762
100-300-300 300 5.5 6.9 2,067
100-300-350 350 5.5 6.6 2,301
100-300-400 400 5.1 6.6 2,646
100-300-450 450 5.3 6.2 2,799
100-300-500 500 4.9 6.3 3,169
100-300-550 550 4.9 6.1 3,366
100-300-600 600 4.8 6.1 3,638


12″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-300-100 100 8.8 8.8 878
120-300-125 125 8.7 8.7 1,088
120-300-150 150 8.5 8.5 1,281
120-300-175 175 7.8 8.7 1,530
120-300-200 200 7.5 8.6 1,724
120-300-225 225 7.3 8.5 1,905
120-300-250 250 7.2 8.3 2,077
120-300-275 275 7.2 8.1 2,230
120-300-300 300 7.2 7.9 2,362
120-300-325 325 6.9 7.9 2,572
120-300-350 350 6.8 7.8 2,728
120-300-400 400 6.7 7.5 3,008
120-300-425 425 6.7 7.4 3,129
120-300-450 450 6.7 7.2 3,224
120-300-475 475 6.7 7.0 3,329
120-300-500 500 6.5 7.0 3,484
120-300-550 550 6.1 6.9 3,811
120-300-600 600 5.9 6.9 4,134
120-300-650 650 5.8 6.9 4,453
120-300-700 700 5.6 6.9 4,850
120-300-750 750 5.6 6.6 4,961


14″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
140-300-030 30 10.6 10.6 317
140-300-040 40 10.8 10.8 433
140-300-050 50 10.8 10.8 541
140-300-080 80 10.1 10.1 809
140-300-100 100 10.0 10.0 1004
140-300-125 125 10.0 10.0 1250
140-300-150 150 9.1 10.3 1,541
140-300-175 175 9.0 9.9 1,736
140-300-200 200 8.7 9.8 1,961
140-300-225 225 8.4 9.6 2,170
140-300-250 250 8.3 9.5 2,372
140-300-275 275 8.1 9.3 2,544
140-300-300 300 8.0 9.2 2,752
140-300-350 350 7.8 8.8 3,087
140-300-400 400 7.5 8.7 3,465
140-300-450 450 7.3 8.5 3,809
140-300-500 500 7.2 8.2 4,114
140-300-550 550 7.1 8.0 4,374
140-300-600 600 7.0 7.7 4,606
140-300-650 650 6.2 7.9 5,144


16″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-300-100 BP 100 11.7 11.7 1,173
160-300-125 BP 125 10.5 11.5 1,442
160-300-150 BP 150 10.1 11.1 1,659
160-300-250 250 9.4 10.5 2,618
160-300-350 350 8.6 10.0 3,486
160-300-400 400 8.5 9.5 3,795
160-300-450 450 8.0 9.6 4,341
160-300-500 500 7.8 9.4 4,705
160-300-550 550 7.7 9.1 5,024
160-300-600 600 7.3 8.9 5,315
160-300-650 650 6.7 9.1 5,911
 
16″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-350-125 BP 125 11.6 11.6 1,447
160-350-140 BP 140 11.7 11.7 1,637
160-350-150 BP 150 11.7 11.7 1,749
160-350-160 BP 160 11.5 11.5 1,833
160-350-175 BP 175 11.4 11.4 1,991


18″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
180-350-100 BP 100 13.1 13.1 1,315
 
10″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-375-200 200 6.7 7.2 1,441
100-375-250 250 6.3 6.6 1,654


12″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
120-375-200 200 7.9 8.2 1,646
120-375-250 250 7.3 8.4 2,106


16″ Length
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-375-225 225 9.9 10.8 2,427
160-375-250 250 9.4 10.4 2,589
160-375-300 300 9.4 10.2 3,059
160-375-350 350 8.8 10.2 3,569

Straight Type
8" Length (ID 1.88)

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
080-188-140 140 4.9 5.4 761
080-188-150 150 4.6 5.6 838
080-188-160 160 4.8 5.3 849
080-188-170 170 4.8 5.2 880
080-188-175 175 4.6 5.2 917
080-188-180 180 4.5 5.3 955
080-188-185 185 4.7 5.2 941
080-188-190 190 4.6 5.2 979
080-188-200 200 4.3 5.3 1,056
080-188-210 210 4.6 5.0 1,056
080-188-220 220 4.3 5.1 1,122
080-188-230 230 4.6 4.8 1,100
080-188-240 240 4.4 4.9 1,177
080-188-250 250 4.2 5.0 1,252
080-188-260 260 4.3 4.8 1,259
080-188-270 270 4.4 4.6 1,257
080-188-275 275 4.3 4.7 1,294
080-188-290 290 4.0 4.8 1,409
080-188-300 300 4.3 4.5 1,356
080-188-325 325 3.9 4.8 1,545
080-188-350 350 4.0 4.6 1,594

Straight Type
10" Length (ID 1.88)

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-188-100 100 6.1 6.5 655
100-188-110 110 6.1 6.9 752
100-188-120 120 6.2 6.5 785
100-188-130 130 5.7 6.8 882

Barrel Type
10" Length (ID 1.88)
[Outside Diameter is set at 3"]

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-188-100B3 100 6.5 7.5 754
100-188-110B3 110 6.3 7.4 829
100-188-120B3 120 6.2 7.3 877
100-188-130B3 130 6.2 7.0 903
100-188-140B3 140 5.9 7.2 1,009
100-188-150B3 150 6.1 6.9 1,042
100-188-160B3 160 5.7 7.0 1,144
100-188-170B3 170 5.8 6.9 1,157
100-188-180B3 180 5.8 6.7 1,206
100-188-190B3 190 5.9 6.5 1,244
100-188-200B3 200 5.7 6.5 1,317
100-188-220B3 220 5.7 6.4 1,402
100-188-240B3 240 5.6 6.3 1,510
100-188-260B3 260 5.4 6.2 1,612
100-188-280B3 280 5.4 6.1 1,704
100-188-300B3 300 5.1 6.1 1,845
100-188-325B3 325 5.2 5.9 1,905
100-188-350B3 350 5.0 5.7 2,028

Straight Type
4" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
040-250-300 300 2.6 2.8 843
040-250-350 350 2.5 2.7 960
040-250-400 400 2.5 2.7 1,066

Straight Type
6" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
060-250-150 150 4.5 4.5 679

Straight Type
8" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
080-250-100 100 5.8 5.8 582
080-250-125 125 5.6 5.6 710
080-250-150 150 5.7 5.7 877
080-250-175 175 5.2 5.7 985
080-250-200 200 5.1 5.8 1,151
080-250-225 225 4.9 5.7 1,280
080-250-250 250 4.8 5.6 1,402
080-250-275 275 4.7 5.5 1,516
080-250-300 300 4.7 5.4 1,620
080-250-350 350 4.6 5.2 1,837
080-250-375 375 4.5 5.2 1,953
080-250-400 400 4.4 5.2 2,066
080-250-425 425 4.3 5.1 2,172
080-250-450 450 4.3 5.1 2,273
080-250-475 475 4.3 5.0 2,371
080-250-500 500 4.2 4.9 2,461
080-250-525 525 4.2 4.8 2,544
080-250-550 550 4.1 4.9 2,679
080-250-600 600 4.0 4.8 2,884
080-250-650 650 4.0 4.6 3,009
080-250-700 700 3.9 4.5 3,180
080-250-900 900 3.7 4.3 3,869
080-250-950 950 3.7 4.2 3,957
080-250-1000 1000 3.6 4.1 4,130
080-250-1100 1100 3.5 3.9 4,339
080-250-1200 1200 3.4 3.9 1,729
080-250-1300 1300 3.2 4.0 5,220
080-250-1400 1400 3.2 3.8 5,298
080-250-1500 1500 3.2 3.5 5,309
080-250-1600 1600 3.0 3.8 6,041

Barrel Type
6" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
060-250-100 B 100 4.7 4.7 467
060-250-125 B 125 4.5 4.5 567
060-250-150 B 150 4.5 4.5 670
060-250-175 B 175 4.4 4.4 774
060-250-200 B 200 4.3 4.3 855
060-250-250 B 250 4.3 4.3 1,067
060-250-300 B 300 4.2 4.2 1,248
060-250-350 B 350 4.1 4.1 1,433

Barrel Type
7" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
070-250-450 B 450 4.4 4.4 1,967
070-250-500 B 500 4.3 4.3 2,146
070-250-550 B 550 4.2 4.2 2,317
070-250-600 B 600 4.1 4.1 2,480
070-250-650 B 650 4.1 4.1 2,687
070-250-700 B 700 4.1 4.1 2,866
070-250-750 B 750 4.0 4.0 2,982

Barrel Type
10" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-250-080 B 80 7.8 7.8 626
100-250-100 B 100 7.6 7.6 765
100-250-125 B 125 7.3 7.3 917
100-250-150 B 150 6.8 8.2 1,152
100-250-160 B 160 6.7 7.6 1,204
100-250-175 B 175 6.5 8.1 1,323
100-250-185 B 185 6.4 7.6 1,397
100-250-200 B 200 6.4 7.9 1,481
100-250-225 B 225 6.3 7.8 1,625
100-250-250 B 250 6.1 7.7 1,783
100-250-275 B 275 5.9 7.7 1,961
100-250-300 B 300 5.8 7.6 2,101
100-250-325 B 325 5.6 7.5 2,266
100-250-350 B 350 5.6 7.4 2,387
100-250-375 B 375 5.6 7.2 2,494
100-250-400 B 400 5.5 7.1 2,633
100-250-425 B 425 5.4 7.0 2,768
100-250-450 B 450 5.3 7.0 2,895
100-250-475 B 475 5.4 6.8 2,955
100-250-500 B 500 5.3 6.7 3,061
100-250-525 B 525 5.2 6.7 3,231
100-250-550 B 550 5.2 6.6 3,324
100-250-600 B 600 5.0 6.5 3,565
100-250-650 B 650 4.9 6.2 3,785
100-250-700 B 700 4.8 6.2 4,079
100-250-750 B 750 4.6 6.2 4,355

Barrel Type
10" Length Progressive
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-250-500V 200/500 4.7 5.1 1,834
100-250-750V 300/750 3.9 4.4 2,690

Barrel Type
12" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-250-060 B 60 9.6 9.6 575
120-250-090 B 90 9.1 9.1 813
120-250-100 B 100 8.5 9.9 954
120-250-125 B 125 8.2 9.8 1,161
120-250-150 B 150 7.8 9.6 1,364
120-250-160 B 160 7.8 8.8 1,407
120-250-175 B 175 7.7 9.4 1,547
120-250-185 B 185 7.7 9.2 1,612
120-250-200 B 200 7.5 9.2 1,731
120-250-225 B 225 7.4 9.0 1,902
120-250-250 B 250 7.3 8.8 2,051
120-250-275 B 275 7.1 8.7 2,219
120-250-300 B 300 6.9 8.6 2,420
120-250-325 B 325 6.8 8.4 2,567
120-250-350 B 350 6.6 8.4 2,753
120-250-375 B 375 6.5 8.2 2,873
120-250-400 B 400 6.4 8.1 3,039
120-250-450 B 450 6.1 8.1 3,414
120-250-475 B 475 6.0 8.1 3,561
120-250-500 B 500 6.0 7.8 3,612
120-250-525 B 525 6.1 7.4 3,644
120-250-550 B 550 5.8 7.6 3,932
120-250-575 B 575 5.8 7.4 4,036
120-250-600 B 600 5.8 7.3 4,124
120-250-750 B 750 5.4 7.0 4,937

Barrel Type
12" Length straight for spring rubbers
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-250-175 TH 175 7.2 7.6 1,337
120-250-200 TH 200 7.0 7.6 1,528
120-250-225 TH 225 6.9 7.4 1,674
120-250-250 TH 250 6.6 7.4 1,841

Barrel Type
12" Length Progressive
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-250-100V 30/100 6.9 7.4 571
120-250-200V 140/200 6.7 8.0 1,453
120-250-225V 140/225 6.6 7.6 1,530
120-250-250V 140/250 6.6 7.2 1,559
120-250-300V 100/300 5.9 6.7 1,448
120-250-400V 150/400 5.7 6.2 1,744
120-250-500V2 200/500 5.5 5.8 2,070

Barrel Type
14" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
140-250-050 B 50 11.3 11.3 562.0
140-250-080 B 80 10.8 10.8 862.0
140-250-100 BP 100 10.8 10.8 1,082
140-250-125 BP 125 10.7 10.7 1,338
140-250-150 BP 150 10.5 10.5 1,570
140-250-165 BP 165 9.8 10.4 1,715
140-250-175 BP 175 9.8 10.3 1,808
140-250-185 BP 185 9.7 10.2 1,889
140-250-200 BP 200 9.7 10.1 2,030
140-250-225 B 225 8.1 10.4 2,209
140-250-250 B 250 7.8 10.3 2,432
140-250-275 B 275 8.0 9.8 2,541
140-250-300 B 300 7.7 9.8 2,777
140-250-325 B 325 7.6 9.6 2,944
140-250-350 B 350 7.3 9.5 3,161
140-250-375 B 375 7.3 9.3 3,301

Barrel Type
14" Length progressive
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
140-250-250V 75/250 6.9 7.6 1,334
140-250-300V 100/300 6.7 7.7 1,653

Barrel Type
16" Length
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-250-050 B 50 12.4 12.4 615
160-250-080 B 80 11.6 11.6 935
160-250-100 BP 100 12.4 12.4 1246
160-250-110 BP 110 11.9 11.9 1,308
160-250-125 BP 125 11.1 12.1 1516
160-250-150 BP 150 11.5 12.2 1827
160-250-175 BP 175 11.4 12.0 2094
160-250-200 B 200 9.6 11.5 2,308
160-250-250 B 250 9.2 10.8 2,700
160-250-300 B 300 8.9 10.3 3,081

20" Length progressive
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
200-250-150 V 75/150 11.3 12.2 1,398

16", 18", + 20" Length
[5.0 od on one end]
(ID 2.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
180-2550-050 BP 50 12.4 13.4 670
180-2550-080 BP 80 13.0 14.1 1,133
180-2550-100 BP 100 12.8 13.7 1,369
180-2550-125 BP 125 13.4 13.4 1,680
160-2550-125 BP 125 11.4 12.3 1,537
160-2550-150 BP 150 11.2 11.9 1,786
200-2550-100 BP 100 15.0 15.0 1,515

6" Length
(ID 3.0")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
060-300-350 350 3.7 4.0 1,406

8" Length
(ID 3.0")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
080-300-200 200 5.0 5.9 1,181
080-300-250 250 4.8 5.7 1,429
080-300-300 300 4.5 5.6 1,689
080-300-350 350 4.4 5.5 1,929
080-300-400 400 4.3 5.4 2,142
080-300-450 450 4.3 5.2 2,337
080-300-500 500 4.1 5.2 2,579
080-300-550 550 4.0 5.0 2,778
080-300-600 600 3.9 5.0 3,000

10" Length
(ID 3.0")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-300-125 125 7.3 7.3 915
100-300-150 150 7.2 7.2 1,075
100-300-200 200 6.0 7.3 1,457
100-300-250 250 5.7 7.0 1,762
100-300-300 300 5.5 6.9 2,067
100-300-350 350 5.5 6.6 2,301
100-300-400 400 5.1 6.6 2,646
100-300-450 450 5.3 6.2 2,799
100-300-500 500 4.9 6.3 3,169
100-300-550 550 4.9 6.1 3,366
100-300-600 600 4.8 6.1 3,638

12" Length
(ID 3.0")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
120-300-100 100 8.8 8.8 878
120-300-125 125 8.7 8.7 1,088
120-300-150 150 8.5 8.5 1,281
120-300-175 175 7.8 8.7 1,530
120-300-200 200 7.5 8.6 1,724
120-300-225 225 7.3 8.5 1,905
120-300-250 250 7.2 8.3 2,077
120-300-275 275 7.2 8.1 2,230
120-300-300 300 7.2 7.9 2,362
120-300-325 325 6.9 7.9 2,572
120-300-350 350 6.8 7.8 2,728
120-300-400 400 6.7 7.5 3,008
120-300-425 425 6.7 7.4 3,129
120-300-450 450 6.7 7.2 3,224
120-300-475 475 6.7 7.0 3,329
120-300-500 500 6.5 7.0 3,484
120-300-550 550 6.1 6.9 3,811
120-300-600 600 5.9 6.9 4,134
120-300-650 650 5.8 6.9 4,453
120-300-700 700 5.6 6.9 4,850
120-300-750 750 5.6 6.6 4,961

14" Length
(ID 3.0")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
140-300-030 30 10.6 10.6 317
140-300-040 40 10.8 10.8 433
140-300-050 50 10.8 10.8 541
140-300-080 80 10.1 10.1 809
140-300-100 100 10.0 10.0 1004
140-300-125 125 10.0 10.0 1250
140-300-150 150 9.1 10.3 1,541
140-300-175 175 9.0 9.9 1,736
140-300-200 200 8.7 9.8 1,961
140-300-225 225 8.4 9.6 2,170
140-300-250 250 8.3 9.5 2,372
140-300-275 275 8.1 9.3 2,544
140-300-300 300 8.0 9.2 2,752
140-300-350 350 7.8 8.8 3,087
140-300-400 400 7.5 8.7 3,465
140-300-450 450 7.3 8.5 3,809
140-300-500 500 7.2 8.2 4,114
140-300-550 550 7.1 8.0 4,374
140-300-600 600 7.0 7.7 4,606
140-300-650 650 6.2 7.9 5,144

16" Length
(ID 3.0")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-300-100 BP 100 11.7 11.7 1,173
160-300-125 BP 125 10.5 11.5 1,442
160-300-150 BP 150 10.1 11.1 1,659
160-300-250 250 9.4 10.5 2,618
160-300-350 350 8.6 10.0 3,486
160-300-400 400 8.5 9.5 3,795
160-300-450 450 8.0 9.6 4,341
160-300-500 500 7.8 9.4 4,705
160-300-550 550 7.7 9.1 5,024
160-300-600 600 7.3 8.9 5,315
160-300-650 650 6.7 9.1 5,911

16" Length
(ID 3.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-350-125 BP 125 11.6 11.6 1,447
160-350-140 BP 140 11.7 11.7 1,637
160-350-150 BP 150 11.7 11.7 1,749
160-350-160 BP 160 11.5 11.5 1,833
160-350-175 BP 175 11.4 11.4 1,991

18" Length
(ID 3.5")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
180-350-100 BP 100 13.1 13.1 1,315

10" Length
(ID 3.75")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
100-375-200 200 6.7 7.2 1,441
100-375-250 250 6.3 6.6 1,654

12" Length
(ID 3.75")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
120-375-200 200 7.9 8.2 1,646
120-375-250 250 7.3 8.4 2,106

16" Length
(ID 3.75")

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
160-375-225 225 9.9 10.8 2,427
160-375-250 250 9.4 10.4 2,589
160-375-300 300 9.4 10.2 3,059
160-375-350 350 8.8 10.2 3,569

Swift Springs - Standard Coilover Springs

Facebook

Instagram

MON - FRI: 8AM - 5PM PST

(909) 393-8623