Extreme Simracing Chassis 4.0
Build a serious sim racing setup around a rigid, adjustable steel foundation engineered for Direct Drive wheelbases, high-force pedal systems, and future upgrades.
The Extreme Simracing Chassis 4.0 combines reinforced steel construction, extensive adjustment, integrated cable management, and a modular accessory ecosystem to create a stable platform for both enthusiast and competitive sim racing.
Built for High-Torque Direct Drive Racing
The reinforced steel chassis is engineered for Direct Drive wheelbases rated at 25 Nm and above, helping reduce flex and unwanted movement during aggressive steering inputs and high-force feedback.
Choose between a Frontal DD or Horizontal wheelbase mount based on your wheelbase mounting pattern.
Heavy-Duty Pedal Platform
The adjustable steel pedal platform is engineered to withstand braking forces above 200 kg, making it suitable for compatible load-cell and high-force pedal systems.
Fine-tune pedal height, angle, and positioning to create a stable and repeatable driving setup.
Fully Adjustable Driving Position
Adjust the wheelbase, pedals, and seat mounting position to create a cockpit tailored to your preferred driving style.
The adjustable seat base allows you to add a compatible racing seat while maintaining flexibility in seating position and ergonomics.
Integrated Cable Management
The Chassis 4.0 incorporates a cable-free design that helps route power and data cables through the structure for a cleaner, more organized simulator setup.
Integrated Metal Floor
A metal floor panel is included with the chassis, giving the cockpit a more finished appearance while adding durability to the footwell area.
What’s Included
• Reinforced steel Chassis 4.0 frame
• Adjustable pedal platform
• Your selected Frontal DD or Horizontal wheelbase mount
• Adjustable seat mounting base
• Integrated metal floor
• Integrated cable-management design
• Assembly hardware
• User manual
What’s Not Included
The base Chassis 4.0 does not include:
• Racing seat
• Monitor or TV stand
• Wheelbase
• Steering wheel
• Pedals
• Shifter
• Handbrake
• PC or gaming console
• Display or monitor
• Other electronic accessories
Seats, monitor stands, shifter/handbrake mounts, keyboard trays, and other compatible accessories are available separately.
Performance Specifications
• Wheelbase capacity: 25 Nm+ Direct Drive ready
• Pedal platform: Engineered for 200 kg+ braking force
• Construction: Reinforced powder-coated steel
• Adjustments: Wheelbase, pedals, and seat
• Wheel mount options: Frontal DD or Horizontal
• Floor: Integrated metal floor
• Cable management: Integrated cable-free design
• Expansion: Compatible with the Chassis 4.0 accessory ecosystem
• Warranty: 5-year chassis warranty
Expand Your Rig Over Time
The Chassis 4.0 is designed to grow with your setup. Compatible accessories include integrated display stands, shifter and handbrake mounts, keyboard and mouse trays, PC/console trays, cup holders, and other Chassis 4.0 accessories.
Built for Serious Sim Racing
With its reinforced steel frame, high-force pedal support, Direct Drive compatibility, extensive adjustability, and modular accessory system, the Extreme Simracing Chassis 4.0 provides a strong foundation for drivers who want a simulator they can continue upgrading over time.
Please note: The base configuration includes the Chassis 4.0 frame and selected wheelbase mount only. Racing seat, monitor stand, electronics, and other accessories are sold separately unless specifically included in a selected bundle.
One other change I’d make: remove the old “Seat Options” section from the product description unless those seats are actually selectable variants on your Dark Matter Desk product page. Otherwise, customers may assume a seat is included or selectable with the $699 chassis when Extreme Simracing currently sells the base chassis without one.
