The SimRig SR3 3DOF Motion System.
The SimRig SR3 3DOF Motion System used with a rig.
The SimRig SR3 3DOF Motion System shown using a rig diagram.
The four mounts used for the SimRig SR3 3DOF Motion System.
The mount for the SimRig SR3 3DOF Motion System shown close up.

SimRig SR3 3DOF Motion System

$5,250.00
By SimRig
SKU: sku-47799086710836
EasyBracket
3 in stock, ready to ship

Upgrade your sim rig with the SimRig SR3 3DOF motion system. This high-load, plug-and-play motion platform is engineered for serious sim racers demanding accurate, low-latency feedback and full rig compatibility.

Mounting options

We offer two options for mounting the motion system to your rig:

  1. Set of four 20x20 profiles (Included)
  2. Set of four EasyBrackets (Optional)

The EasyBrackets allow faster installation, but the profiles are more cost-effective and work for smaller rigs such as those with 40x40 profiles.

20x20 profiles (Included)

The SIMRIG SR2 in the picture below is mounted on a 40x80 aluminum extrusion rig using two 20x20x780 mm profiles. The profiles are attached to the rig using angle brackets, T-nuts, and bolts.

The profiles are 780 mm long; hence the rig width limitation of 620 mm.

Four 20x20 profiles and four plastic brackets are required to attach the SIMRIG motion system to an aluminum rig. These are included if the 20x20 mounting option is chosen.

The four 20x20 profiles are mounted in pairs. Two at the front of the rig and two at the back. Each pair holds two SIMRIG actuators.

The plastic brackets are designed to attach to a specific extrusion size. Different rigs are based on different extrusions and therefore require a matching bracket. Brackets for your chosen extrusion are included in the box.

See the user manual for more details on attaching the profiles.

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Figure: Two 20x20x780 mm aluminum profiles are attached to the rig's underside. The SIMRIG SR2 is attached to these profiles.

The profiles are available in black only.

20x20 profiles are the only option for 40x40 mm rigs. They are also a good option for less sturdy rigs, as the 20x20 profiles form a base on which your rig is mounted.

EasyBrackets (Optional)

The EasyBrackets were introduced in 2024 as a faster way to install the SIMRIG SR1, SR2, and SR3 motion systems. The EasyBrackets are a set of four aluminum consoles that come pre-attached to the actuators. They allow the actuators to bolt onto the sides of the rig.

See the user manual for more details on how to attach a motion system with EasyBrackets.

../_images/mount-easybrackets.png

Figure: A SIMRIG SR2 bolts directly onto the rig using the pre-attached EasyBrackets.

The EasyBrackets are black to match the actuators.

EasyBrackets are not compatible with 40x40 rigs.

Considerations

Choose 20x20 mm profiles:

  • Your rig is not yet assembled
  • Your rig is made of smaller profiles like 40x40 or 30x60
  • Your rig is at most 620 mm wide
  • Estimated assembly time: 4 hours

Choose the EasyBrackets:

  • Your rig is built and assembled
  • Your rig is wider than 620 mm
  • Estimated assembly time 1 hour

KIT INCLUDES:

• 4x SIMRIG actuators
• 1x Electronic Control Unit (ECU)
• 1x Power Supply Unit (PSU)
• 1x Emergency stop
• 4x Support brackets
• 4x Vibration dampers
• 1x 100-220V power cable (C13)
• 1x Low voltage power cable (2 m)
• 4x Linear actuator cable (1 m)
• 1x USB cable (3 m)
• 8x M5x25 mm screw
• 4x M5x10 mm screw
• 4x M5I8 T-nut
• 8x Plastic spacer
• 8x M5 locknut
• 8x M5 washer
• 10x Cable ties
• 6x Cable clips
• 4x 780x20x20 profiles
• 8x Plastic end-cap
• 8x 90-degree angle brackets
• 8x M8x16 mm screw
• 8x M8I8 T-nut
• 16x M5x25 mm screw
• 24x M5I5 T-nut
• 8x M5I8 T-nut
• 8x M5x14 mm screw
• 8x M5x10 screw

Mounting with EasyBracket (Optional)
• 8x M8x80 mm screw
• 8x Nordlock washer
• 8x M8x16 mm screw
• 8x M8I8 T-nut

Downloads

Key Benefits

• Feel precise chassis movement that translates directly from the sim to your body
• Run heavier, fully built rigs without sacrificing responsiveness
• Get on track faster with a true plug-and-play installation
• Customize motion profiles per car and sim title for realistic feedback
• Maintain a clean setup with compact components and hidden cabling
Who It's For

This system is built for intermediate to advanced sim racers who want to upgrade from static rigs to full motion. It is ideal for users running aluminum extrusion rigs with heavier seats, direct-drive wheelbases, and full pedal setups. Whether you are training, competing, or building a premium home simulator, this system supports high-end configurations without compromise.
Key Features

The system uses four industrial-grade linear actuators designed for durability and consistent performance under load. A total capacity of 250 kg allows for full rigs, including driver and peripherals. The included ECU and fanless 1000 W power supply deliver stable performance from a standard household outlet. Installation is simplified with pre-attached EasyBracket mounts that connect directly to common aluminum profile sizes. The SimRig Control Center software enables detailed tuning of motion profiles across major racing simulators while maintaining extremely low system latency.
Technical Specifications

• Motion system type: 3DOF actuator-based system
• Max load: 250 kg including rig, driver, and peripherals
• Power: 1000 W fanless power supply
• Travel: 70 mm
• Speed: 100 mm/s at max load
• Accuracy: 0.1 mm
• Latency: 7 ms
• Interface: USB 2.0 Mini-B
• Operating system: Windows 10 and 11 64-bit
• Mounting compatibility: Aluminum extrusion rigs 40x40, 80x40, 120x40, 160x40 mm and others
• Power input: 100 to 240 V, 50 to 60 Hz
Real-World Use & Experience

In practice, the system delivers immediate, controlled motion that mirrors weight transfer, braking force, and surface changes. The low latency ensures that what you see and what you feel are aligned, which is critical for consistency and muscle memory. The higher load capacity means you can run a fully built rig without dialing back motion strength. The SimRig SR3 3DOF motion system feels stable, predictable, and responsive across everything from smooth circuits to aggressive curbing.
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