Tuning the V20 / V20 Pro: which display and which controller
Please note: tuning is only intended for use on private or enclosed property. On public roads in the Netherlands and Belgium, a maximum of 25 km/h applies; in other countries, the rules of that country apply.
To tune a QMWheel V20 or V20 Pro (often also called "Ouxi V20") you always need two parts: the tunable H6C display and a tunable controller in the colour of your motor plug. One of the two is not enough. According to the product data, the V20 can then be tuned up to 45 km/h (up to 32 km/h with the black motor plug controller), and only on private or enclosed property.
Which display and which controller per model
| Model | Display | Controller |
|---|---|---|
| V20 / V20 Pro with red motor plug | H6C display tunable (without NFC) | V20 / V20 Pro / S20 controller tunable, red motor plug |
| V20 / V20 Pro with black motor plug | H6C display tunable (without NFC) | V20 / V20 Pro / S20 Pro controller tunable, black motor plug |
| V20 Cross | H6C display tunable (without NFC) | V20 Cross controller tunable, red motor plug |
| V20 Pro Skinny Bike | H6C display tunable (without NFC) | V20 Pro Skinny Bike controller tunable, red motor plug |
| V29 Pro | H6C display tunable (without NFC) | V29 Pro controller tunable, red motor plug |
The H6C display has a 5-pin plug. If your current display has NFC, choose the H6C display tunable (with or without NFC) in the With NFC variant.
Which plug colour do you have?
Look at the plug in the motor cable: the cable that runs from the motor in the rear wheel to the controller. If that plug is red, choose a controller with a red motor plug; if it is black, choose a controller with a black motor plug. A controller with the wrong colour will not work on your bike. In the selection guide you can see which part fits each model.
What is in the box?
- Display: the H6C display with two small screws, nuts and rubber pads for mounting.
- Controller: the controller, in compact packaging.
- If you order a bike from the tunable fatbikes in the Tunable version, the tuning parts are already included.
Installation in outline
- Switch the bike off and remove the battery.
- Display: disconnect the 5-pin plug, unscrew the clamp on the handlebar and fit the new display in the same place. Push the plug in straight and without force, so the pins do not bend.
- Controller: remove the saddle first, then you can easily reach the controller. Take a photo of the old connections and reconnect the 5 cables in the same order.
- Then set up the display according to the instructions with the product.
Frequently asked questions
Do I need a display and a controller for the V20?
Yes. Tuning a V20 or V20 Pro always requires a tunable H6C display and a tunable controller together.
Which controller fits my V20 Pro?
That depends on your motor plug. Choose the tunable controller with the same colour: red or black.
Does the H6C display also fit the V20 Cross and the V29 Pro?
Yes. According to our product data, the tunable H6C display with a 5-pin plug fits both models.
Can I tune the V20 Mini?
We do not sell a tunable display or a tunable controller for the V20 Mini.
How quickly will I receive the parts?
Order before 23:59, delivered tomorrow. Shipping within the Netherlands costs €7.95 and is free from €150.
All separate tuning parts are in the tuning kits.
Not sure which part fits? Message us on WhatsApp at +31 6 82090642 or email info@fatbikeklaar.nl, preferably with a photo of your motor plug and your current display.
Last checked: 3 October 2026.