AST Suspension RAC-F1101S Series Adjustable Coilover Kit - 5300 3-Way

The AST Suspension 5300 Series Coilover Kit is a competition-grade, 3-way adjustable monotube suspension system engineered for serious motorsport enthusiasts and track-day drivers. Designed with race-proven technology and precision engineering, this complete coilover kit delivers exceptional control, handling, and adjustability for demanding driving conditions.

Advanced Monotube Design:

The 5300 Series features AST's advanced monotube technology with gas-pressurized dampers that separate oil and nitrogen gas using a floating piston design. This configuration eliminates cavitation around the piston, resulting in improved damper performance, enhanced sensitivity, and consistent heat dissipation even during extended track sessions. The larger piston surface area provides superior damping power and more precise feedback to the driver.

3-Way Independent Adjustability:

• Rebound Adjustment: 12 positions to control damper extension and return speed
• Low-Speed Compression: 14 positions to manage body roll during cornering and braking
• High-Speed Compression: 12 positions to handle rapid impacts and undulations
• All adjustments work completely independently via external remote reservoirs

Race-Inspired Construction:

• Inverted strut design engineered to handle heavy side loads and braking forces
• Remote reservoirs enhance damper travel and improve heat displacement for consistent performance
• Aluminum cylinder and threaded body construction
• Adjustable ride height platform that maintains maximum damper stroke
• Low-friction seals for improved responsiveness
• Fully serviceable and rebuildable design

Complete Kit Includes:

• Front and rear monotube coilover dampers with springs
• External remote reservoirs with compression adjusters
• Camber-adjustable front top mounts (where applicable)
• Solid rear top mounts (where applicable)

The AST 5300 Series represents the pinnacle of AST's suspension technology, combining decades of motorsport experience from KONI, Aragosta, and INDY Car racing into a suspension system that provides championship-level performance. Each adjustment position delivers distinct feedback, allowing you to fine-tune your suspension setup to match specific track conditions, driving styles, or competition requirements.