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Sim racing cockpit fitted with REACTOR Motion actuators

Reactor Motion

3
  • Preface
  • REACTOR Motion – What is in the box?
  • SimHub Setup for Motion
REACTOR Tension active dual belt tensioner with two shoulder-belt straps

Reactor Tension

2
  • SimHub Setup for Tension
  • REACTOR Tension standalone vs add-on
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  • SimHub Setup for Tension

SimHub Setup for Tension

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REACTOR Tension active dual belt tensioner with two shoulder-belt straps

You are setting up REACTOR Tension Standalone.
Use the Tension Standalone controller configuration from this guide. Do not import the Motion controller file.

Sim racing cockpit fitted with REACTOR Motion actuators

Setting up Motion, or Tension as an add-on to Motion?
Open the REACTOR Motion setup guide →

Your REACTOR Tension is already calibrated.
No further calibration in SimHub is needed nor recommended. Simply keep the existing calibration and follow the setup steps below.

Introduction #

To operate REACTOR Tension, the SimHub software is required.
This setup guide applies to the standalone use of REACTOR Tension.

If you are using the Tensioner as an add-on with the REACTOR Motion System, please continue here

1. Download and install the latest version of SimHub #

You can download the latest version of SimHub from this link:

Download SimHub software

Run the SimHub installer.

2. Buy SimHub licences #

To use the SimHub Motion add-on, you need to purchase two licences:
– Buy a SimHub base licence
– Buy a Motion add-on licence

3. Start SimHub #

Launch SimHub on your computer to begin the setup process.

4. Activate Motion Plugin #

Once SimHub is running, enable the Motion add-on:

1.) Click on “Add/remove features”

2.) Click the enable button for the Motion add-on.

SimHub Motion-plugin activation screenshot

5. Activate Licenses #

Make sure you have purchased both licences and saved the licence files sent to you by SimHub by email.

1.) Open “Settings → General”.

2.) Click “Add License”.

3.) Select a licence file on your computer. Only one file can be selected at a time.

4.) Open the selected file.

5.) Repeat these steps for the other licence.

SimHub licence-activation screenshot

6. Configure Seatbelt Settings #

Follow the steps below to configure your REACTOR Tension Standalone.

1.) Click “Motion”.

2.) Click “Configure your motion platform”.

SimHub motion-platform configuration screenshot for REACTOR Motion

7. Import Geometry Configuration #

Download our preconfigured geometry settings from REACTOR.

Download Tension Standalone geometry configuration

1.) Click “Import geometry settings from file”.

2.) Select the downloaded “*.shmotiongeometry” file in the file picker.

3.) Open the file.

SimHub platform-geometry import screenshot for REACTOR Motion

8. Import Controller Configuration #

Before importing: this download is for REACTOR Tension Standalone. Use the controller file from this guide, not a file downloaded for the other product.

Download our preconfigured output controller settings from REACTOR.

Download Tension Standalone controller configuration

1.) Click “Import controller(s) from file”.

2.) Select the downloaded “*.shmotioncontroller” file in the file picker.

3.) Open the file.

SimHub controller-settings import screenshot for REACTOR Motion

9. Select the COM port #

Select the COM port used by your REACTOR Tension Standalone control unit, as described below.

1.) Open “Settings” for the imported Tension Standalone controller.

SimHub generic-controller COM-port settings for REACTOR Tension

2.) Open “Controllers” and select the COM port used by the control unit connected via USB. It is usually shown as “FTDI”. If you cannot find it, use “Identify”.

3.) Then press “Edit axis assignments”

SimHub screenshot: selecting the COM port of the REACTOR Tension controller

4.) The axes are already assigned. Click “OK”.

SimHub screenshot: assigning the REACTOR Tension controller outputs

10. Test the platform #

You can now run a functional test.

1.) Navigate to “Motion”

2.) Press “Enable Motion”

3.) Go to “Manual Control”

4.) Use the sliders to slowly increase the belt tension on each side.

SimHub test-settings screen for REACTOR Tension

11. Ready to tension #

Your belt tensioner is now ready for your favourite games. Some games require additional steps to enable telemetry data for SimHub. Follow the instructions in SimHub.

Updated on October 20, 2026
REACTOR Tension standalone vs add-onREACTOR Tension standalone vs add-on
Table of Contents
  • Introduction
  • 1. Download and install the latest version of SimHub
  • 2. Buy SimHub licences
  • 3. Start SimHub
  • 4. Activate Motion Plugin
  • 5. Activate Licenses
  • 6. Configure Seatbelt Settings
  • 7. Import Geometry Configuration
  • 8. Import Controller Configuration
  • 9. Select the COM port
  • 10. Test the platform
  • 11. Ready to tension

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