Swift Spec-R Sport Springs
Track-Tested Precision. Street-Ready Comfort.
The Swift Spec-R Sport Springs are engineered for drivers who demand performance without compromise. Designed at the upper limits of factory shock valving, these springs provide enhanced cornering performance, quicker response, and precise control—all while retaining the smooth ride quality of an OEM suspension.
Whether you're dialing in for HPDEs, SCCA competition, or simply carving canyon roads, Swift Spec-R delivers true dual-purpose capability.
🔧 Key Features:
• Track-tested and tuned for serious driving performance
• Maintains showroom-quality ride comfort for daily use
• Ideal for HPDE, time attack, autocross, and spirited street driving
• Proprietary H5S.TW spring material for enhanced responsiveness and longevity
• Wound with fewer coils to reduce unsprung mass and prevent coil bind
• Engineered for maximum usable stroke and suspension efficiency
🧪 Engineering Philosophy:
➡ Real-World Usable Stroke
Many lowering springs sacrifice ride quality for looks. Swift tackles this with a design that keeps your suspension in its optimal working range—no harsh bottom-outs, no shock damage.
➡ Material Superiority – H5S.TW
Our proprietary alloy delivers faster transient response than typical spring steel. That means the spring absorbs harshness and adapts to road surfaces, where other springs would skip or bounce.
➡ Functional Lowering Design
Every Spec-R spring is tuned to maximize suspension geometry while maintaining control and comfort. With a higher spring rate than Sport series, Spec-Rs push performance to the edge of OEM shock capability—no compromises.
⚙️ Spring Rate & Drop Specs (Sample Configuration):
• Front: 6.5 kg/mm | Drop: ≈ -1.0 inch
• Rear: 10.0 kg/mm | Drop: ≈ -0.6 inch
(Varies by vehicle – see specific application for details.)
🎯 Spec-R Spring Design Focus:
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Lower ride height for improved suspension geometry
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Increased spring rates tuned to OEM damper limits
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Comfort maintained for daily street use
📌 Best For:
• Enthusiasts pushing their car at the track
• Drivers upgrading beyond standard lowering springs
• Those who want style, handling, and ride quality in one solution