Simucube Tahko GT-21

Getting started

Package contents

  • 1 x Simucube Tahko wireless simracing wheel
  • 1 x CR2477N battery
  • 1 x Battery cover
  • 2 x Battery cover screws
  • 1 x 2mm Hex key
  • 1 x Set of button label stickers

Installing the battery

  1. Insert the included battery in the battery holder, with the text and plus sign facing up.
  2. Attach the battery cover A using the supplied screws.
  3. Press the white power button B to power the wheel.
  4. Open True Drive. Connect the wheel by pressing both paddles for 5 seconds and using True Drive.
  5. The wheel is now ready to use.

For Simucube Tuner wireless wheel pairing instructions, please visit the Wireless wheels page in the Tuner section.

Check Simucube’s YouTube channel for more tutorials.

Button label stickers

The package includes label stickers for customizing your steering wheel to your liking.

The numbers on the sticker sheet match the positions in the illustration above.

Simucube button

Note: The Simucube button is currently only supported in True Drive.

The Simucube button is used to change force feedback parameters straight from the wheel. Here is how to use it:
1. Hold down the Simucube Button C over one second to enter Simucube Button mode
2. Use the 7-way switch D to select a parameter to modify
3. Turn the 7-way switch D to increase or decrease the selected parameter

Directions of the 7-way switch:

Up: Overall strength (selected by default when entering Simucube button mode)

Left: Damping

Right: Simucube Force Reconstruction filter

Down: Nothing yet, reserved for future use

Pressing a parameter selection for more than 2 seconds will reset the parameter to the previous value in True Drive.


This product has a 24-month limited warranty.
Warranty terms are available at

Manufacturer information

Granite Devices Oy

Visiokatu 3, FI-33720 Tampere, Finland


In support queries, please get in touch with your reseller.