Coil Springs
Boost your race car’s suspension system with high-performance coil springs tailored for circle track racing. These springs deliver consistent support and improved handling on tight curves and long stretches. Explore our coil spring options to maximize your car’s potential.
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Barrel Spring 12in x 2.5in x 400# SWI120-250-400B
SWIFT SPRINGS
$111.35A 400 lb/in spring rate delivers the responsive suspension geometry you need for precision handling and consistent performance across varying track conditions. This 12-inch barrel coil-over spring maintains its characteristics through extended use,...SWI120-250-400B- SKU:
- SWI120-250-400B
- Availability:
- Ships Same Business Day
- Weight:
- 6.18 LBS
- MFG Part #:
- 120-250-400 B
- Spring Rate:
- 400 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 350# 120-250-350 B
SWIFT SPRINGS
$111.35A properly matched spring rate is fundamental to suspension tuning—this 350 lb/in barrel spring delivers the stiffness needed for precision handling without sacrificing ride control. Whether you're dialing in a coil-over setup for track duty or building...SWI120-250-350B- SKU:
- SWI120-250-350B
- Availability:
- Ships Same Business Day
- Weight:
- 5.59 LBS
- MFG Part #:
- 120-250-350 B
- Spring Rate:
- 350 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 325# 120-250-325 B
SWIFT SPRINGS
$111.35A 325 lb/in spring rate gives you the responsive, controlled suspension geometry your coil-over setup demands, whether you're fine-tuning a street-driven platform or dialing in a dedicated track car. This barrel-profile spring delivers consistent load...SWI120-250-325B- SKU:
- SWI120-250-325B
- Availability:
- Ships Same Business Day
- Weight:
- 5.39 LBS
- MFG Part #:
- 120-250-325 B
- Spring Rate:
- 325 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in Progressive DLM 120-250-300V
SWIFT SPRINGS
$145.35Progressive spring rates deliver the responsive handling you need during initial suspension travel while resisting bottoming under extreme load—essential for both track performance and street durability. This 12-inch barrel spring transitions from a...SWI120-250-300V- SKU:
- SWI120-250-300V
- Availability:
- Ships Same Business Day
- Weight:
- 4.30 LBS
- MFG Part #:
- 120-250-300V
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$145.35 -
Barrel Spring 12in x 2.5in x 300# 120-250-300 B
SWIFT SPRINGS
$111.35If you're building a coil-over suspension system or upgrading your existing setup, spring rate is everything—and this 300 lb/in barrel spring delivers the precision tuning you need for responsive handling without sacrificing ride quality. Whether you're...SWI120-250-300B- SKU:
- SWI120-250-300B
- Availability:
- Ships Same Business Day
- Weight:
- 4.71 LBS
- MFG Part #:
- 120-250-300 B
- Spring Rate:
- 300 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 275# 120-250-275 B
SWIFT SPRINGS
$111.35A 275 lb/in spring rate delivers the precise suspension compliance you need for track-focused setups where bump compliance and predictable load curves matter. Whether you're dialing in a dedicated coil-over system or replacing a worn spring, this...SWI120-250-275B- SKU:
- SWI120-250-275B
- Availability:
- Ships Same Business Day
- Weight:
- 5.14 LBS
- MFG Part #:
- 120-250-275 B
- Spring Rate:
- 275 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 250# 120-250-250 B
SWIFT SPRINGS
$111.35If you're tuning a coil-over suspension system, spring rate directly determines your vehicle's handling characteristics and load-carrying capacity. This 250 lb/in barrel spring delivers the stiffness needed for responsive cornering and consistent ride...SWI120-250-250B- SKU:
- SWI120-250-250B
- Availability:
- Ships Same Business Day
- Weight:
- 4.89 LBS
- MFG Part #:
- 120-250-250 B
- Spring Rate:
- 250 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 225# 120-250-225 B
SWIFT SPRINGS
$111.35A properly tuned coil-over suspension demands a spring rate that matches your vehicle's geometry and driving demands. This 225 lb/in barrel spring delivers the progressive support needed for consistent handling across street and track applications, while...SWI120-250-225B- SKU:
- SWI120-250-225B
- Availability:
- Ships Same Business Day
- Weight:
- 4.40 LBS
- MFG Part #:
- 120-250-225 B
- Spring Rate:
- 225 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 200# 120-250-200 B
SWIFT SPRINGS
$111.35If you're building or tuning a performance suspension setup, spring rate is non-negotiable—and this 200 lb/in coil spring delivers the responsive handling and consistent load control that separates dialed-in builds from guesswork. The 2.5-inch inner...SWI120-250-200B- SKU:
- SWI120-250-200B
- Availability:
- Ships Same Business Day
- Weight:
- 4.01 LBS
- MFG Part #:
- 120-250-200 B
- Spring Rate:
- 200 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 185# 120-250-185 B
SWIFT SPRINGS
$111.35If you're building a performance suspension setup, spring rate consistency is non-negotiable—and this 185 lb/in barrel spring delivers predictable, linear load support across its full stroke. The 12-inch length pairs perfectly with coil-over applications...SWI120-250-185B- SKU:
- SWI120-250-185B
- Availability:
- Ships Same Business Day
- Weight:
- 3.82 LBS
- MFG Part #:
- 120-250-185 B
- Spring Rate:
- 185 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 175# 120-250-175 B
SWIFT SPRINGS
$111.35A properly-tuned suspension begins with the right spring rate, and this barrel coil-over delivers the 175 lb/in stiffness needed for responsive handling without sacrificing ride quality on street or track. Whether you're building a custom coil-over setup...SWI120-250-175B- SKU:
- SWI120-250-175B
- Availability:
- Ships Same Business Day
- Weight:
- 3.74 LBS
- MFG Part #:
- 120-250-175 B
- Spring Rate:
- 175 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Barrel Spring 12in x 2.5in x 150# 120-250-150 B
SWIFT SPRINGS
$111.35A properly tuned suspension starts with the right spring rate, and this 150 lb/in barrel spring delivers predictable, linear load progression for vehicles running coil-over setups. Whether you're fine-tuning a track car or building a dedicated race...SWI120-250-150B- SKU:
- SWI120-250-150B
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- MFG Part #:
- 120-250-150 B
- Spring Rate:
- 150 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Conventional Spring 11in x 5.5in x 425lb 110-550-425
SWIFT SPRINGS
$128.35When you're building a rear suspension that can handle aggressive driving without deflection or instability, spring rate selection is everything. This conventional coil spring delivers a stiff 425 lb/in rate in a compact 11-inch package, ideal for street...SWI110-550-425- SKU:
- SWI110-550-425
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- MFG Part #:
- 110-550-425
- Spring Rate:
- 425 lb.
- Spring Height:
- 11"
- Spring ID:
- 5.5"
$128.35 -
Conventional Spring 11in x 5.5in x 400lb 110-550-400
SWIFT SPRINGS
$128.35A stiff 400 lb/in spring rate gives you the responsive rear-end geometry you need for consistent cornering and load transfer under hard driving. This conventional coil spring delivers predictable suspension behavior without the complexity of adjustable...SWI110-550-400- SKU:
- SWI110-550-400
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- MFG Part #:
- 110-550-400
- Spring Rate:
- 400 lb.
- Spring Height:
- 11"
- Spring ID:
- 5.5"
$128.35 -
Conventional Spring 11in x 5in x 250# SWI110-500-250
SWIFT SPRINGS
$119.85A properly matched coil spring is fundamental to your vehicle's suspension geometry and handling characteristics. This 11-inch conventional spring delivers a 250 lb/in rate engineered for rear-axle applications, providing the stiffness needed for...SWI110-500-250- SKU:
- SWI110-500-250
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
- MFG Part #:
- 110-500-250
- Spring Rate:
- 250 lb.
- Spring Height:
- 11"
- Spring ID:
- 5"
$119.85 -
Conventional Spring 11in x 5in x 200# 110-500-200 BP
SWIFT SPRINGS
$136.85A rear suspension spring is fundamental to your vehicle's handling, ride quality, and weight transfer during acceleration and braking. This conventional coil spring delivers a 200 lb/in rate—ideal for street applications and moderate performance...SWI110-500-200BP- SKU:
- SWI110-500-200BP
- Availability:
- Ships Same Business Day
- Weight:
- 4.32 LBS
- MFG Part #:
- 110-500-200 BP
- Spring Rate:
- 200 lb.
- Spring Height:
- 11"
- Spring ID:
- 5"
$136.85 -
Conventional Spring 11in x 5in x 175# 110-500-175 BP
SWIFT SPRINGS
$136.85If you're building or rebuilding a rear suspension, spring rate directly dictates your vehicle's ride height, load capacity, and handling characteristics. This 175 lb/in conventional spring delivers predictable, linear response under acceleration and...SWI110-500-175BP- SKU:
- SWI110-500-175BP
- Availability:
- Ships Same Business Day
- Weight:
- 4.51 LBS
- MFG Part #:
- 110-500-175 BP
- Spring Rate:
- 175 lb.
- Spring Height:
- 11"
- Spring ID:
- 5"
$136.85 -
Coilover Spring 10in x 2.5in x 150lb 100-250-150 B
SWIFT SPRINGS
$111.35A properly tuned coilover spring is fundamental to suspension geometry and vehicle handling—this barrel-style coil spring delivers consistent 150 lb/in spring rate performance across full suspension travel. Whether you're tuning a street car or dialing...SWI100-250-150B- SKU:
- SWI100-250-150B
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- MFG Part #:
- 100-250-150 B
- Spring Rate:
- 150 lb.
- Spring Height:
- 10"
- Spring ID:
- 2.5"
$111.35 -
Coilover Spring 10in x 2.5in x 125lb 100-250-125 B
SWIFT SPRINGS
$111.35A coilover spring is the backbone of any performance suspension system, directly controlling how your chassis responds to lateral loads, braking events, and acceleration. This 125 lb/in spring rate delivers the firmness needed for track-focused vehicles...SWI100-250-125B- SKU:
- SWI100-250-125B
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- MFG Part #:
- 100-250-125 B
- Spring Rate:
- 125 lb.
- Spring Height:
- 10"
- Spring ID:
- 2.5"
$111.35 -
Coilover Spring 10in x 2.5in x 100lb 100-250-100 B
SWIFT SPRINGS
$111.35If you're building a track-focused suspension setup or upgrading your coil-over system, spring rate consistency is everything—and this 100lb/in coil-over spring delivers the predictable, linear response you need for precision handling and repeatability...SWI100-250-100B- SKU:
- SWI100-250-100B
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MFG Part #:
- 100-250-100 B
- Spring Rate:
- 100 lb.
- Spring Height:
- 10"
- Spring ID:
- 2.5"
$111.35
