SKU: AST-180-110-61 | UPC: astAST-180-110-61
AST Linear Race Springs – 180mm Length x 110 N/mm Rate x 61mm ID – Single
AST Linear Race Springs deliver exact specifications for custom coilover assemblies in race cars and track vehicles. This single spring with 180mm free length 110 N/mm rate and 61mm inner diameter suits high-demand motorsport setups needing linear response. It ensures sharp handling and stability under extreme conditions.
Key Features
- 180mm Free Length: Provides optimal suspension travel and preload in standard coilover configurations for consistent ride height
- 110 N/mm Linear Rate: Offers predictable force progression for balanced damping and precise cornering feedback
- 61mm Inner Diameter: Matches common 2.5-inch coilover bodies and perches for direct compatibility
- SUP9A Silicon Chrome Steel: High-tensile material resists fatigue and maintains shape after repeated high-load cycles
- Shot Peened and Heat Treated: Enhances surface durability removes hydrogen embrittlement and boosts load capacity for track longevity
Product Notes
- Sold individually pair required for most applications
- Intended for motorsport use verify rate and length match your setup
- Packaged in protective sleeve to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Confirm coilover body ID exceeds 61mm and perch aligns properly
- Adjust thread height to accommodate 180mm free length fully
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Motorsport Coilover Builds | Race/Track |
Why Choose AST?
- Trusted by pro racing teams in GT and endurance series
- Exact tolerances from specialized manufacturing process
- Proven in high-G track environments for reliable results
Frequently Asked Questions
- Q: Will this fit my coilover kit?
A: 61mm ID works with most 60-62mm coilover tubes check perch diameter and required length for your build - Q: What material construction?
A: Cold-wound SUP9A Silicon Chrome Steel heat treated shot peened and scrubbed for maximum strength and corrosion resistance - Q: What warranty coverage?
A: AST provides 1-year warranty against defects in materials or workmanship under normal motorsport use
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Protective cardboard tube 8in x 8in x 8in
- Weight: 2.00 lbs





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