
STANDARD COILOVER SPRINGS.
INCREASE TRACTION. LESS UN-SPRUNG MASS. MORE STROKE. INCREASED HANDLING.
Standard Coilover Springs
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...
>Oval Track Racing >Drag Racing >Off-Road Racing >And much more!

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 springs 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 (HS5.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.
Introducing the BP Series: robust, resilient, and responsive. Built for the extreme, these springs are for the racer who knows no bounds and pushes every limit. With Swift's philosophy of responsiveness and traction, the BP Springs are your secret weapon against fatigue on the track.
DUE TO CONTINUED ENGINEERING ADVANCES, PRODUCT SPECIFICATION MAY CHANGE WITHOUT NOTICE.
Standard Coilover 1.63" Length Springs
Standard Coilover Springs 1.63"ID
4.5" LENGTH - 1.63"ID Barrel Type
[Quarter Midget]
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4.5" LENGTH - 1.63"ID Tight Helix Type
[Quarter Midget]
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Standard Coilover Springs 1.88"ID
8" Length - 1.88"ID
STRAIGHT TYPE
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8" LENGTH - 1.88"ID
TIGHT HELIX TYPE
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10" LENGTH - 1.88"ID
STRAIGHT TYPE
10" LENGTH - 188"ID
BARREL TYPE (OUTSIDE DIAMETER IS SET AT 3")
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Standard Coilover Springs 2.5"ID
4" LENGTH - 2.5"ID
STRAIGHT TYPE
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6" LENGTH - 2.5"ID
BARREL TYPE
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7" LENGTH - 2.5"ID
BARREL TYPE
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8" LENGTH - 2.5"ID
BARREL TYPE
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8" LENGTH - 2.5"ID
STRAIGHT TYPE
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9" LENGTH - 2.5"ID
BARREL TYPE
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10" LENGTH - 2.5"ID
BARREL TYPE
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10" Length - 2.5"ID
Tight Helix Type
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10" LENGTH - 2.5"ID
Progressive Type
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12" LENGTH - 2.5"ID
Barrel Type
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12" LENGTH - 2.5"ID
Tight Helix Type
(Straight For Spring Rubbers)
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12" LENGTH - 2.5"ID
Progressive Type
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14" LENGTH - 2.5"ID
(Part #s containing 'B' are Barrel Springs.
'BP' are Bulletproof Springs)
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14" LENGTH - 2.5"ID
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16" LENGTH - 2.5"ID
(Part #s containing 'B' are Barrel Springs.
'BP' are Bulletproof Springs.)
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20" LENGTH - 2.5"ID
Progressive Type
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16", 18", & 20" LENGTH - 2.5"ID [5.0"OD on one end]
Bulletproof Type
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Standard Coilover Springs 3.0"ID
6" LENGTH - 3.0"ID
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8" LENGTH - 3.0"ID
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10" LENGTH - 3.0"ID
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12" LENGTH - 3.0"ID
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14" LENGTH - 3.0"ID
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16" LENGTH - 3.0"ID
(Part #s containing 'BP' are Bulletproof Springs)
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18" LENGTH - 3.0"ID
Barrel Type
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Standard Coilover Springs 3.5"ID
16" LENGTH - 3.5"ID
Bulletproof Type
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18" LENGTH - 3.5"ID
Bulletproof Type
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Standard Coilover Springs 3.75"ID
10" LENGTH - 3.75"ID
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12" LENGTH - 3.75"ID
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12" LENGTH - 3.75"ID
Barrel Type
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16" LENGTH - 3.75"ID
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20" LENGTH - 3.75"ID
Barrel Type
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