For the S20 this was the right one. Definitely recommended. That's how it should be.
V20, V20 Pro, S20 Pro Tunable Controller (Black Motor Plug)




Ordered before 23:59, delivered tomorrow
Motor plug colour: Black
- Tested on a fatbike before shipping
- Easy to install
- Home delivery across the EU
- Not happy? Money back, 14-day cooling-off period
- Fits: V20 Pro, S20, S20 Pro, V20 Cross
Step by step How do I check my motor plug colour?
How to check which motor plug colour your fatbike has
All you need is a pair of wire cutters and it takes a minute. The colour is on the inside of the motor plug, so you'll need to pull it apart. That's fine: it won't damage the plug.
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Go to the rear wheel
Put your fatbike on its stand. The motor is in the rear wheel, and one thick cable comes out of it: the motor cable.
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Follow the motor cable to the plug
The motor cable runs along the frame to the first plug. It's usually held in place with two cable ties. Cut the first one.
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Cut the second cable tie too
Now the plug hangs free and you can get a good grip on it.
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Hold the plug on both sides
Hold it by the thick plug housings, not by the thin wires.
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Pull the plug firmly apart
It's a tight fit, so don't be afraid to pull hard. The plug won't break.
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Look at the inside
Where the pins stick out you'll see the colour: red or black. That's your motor plug colour.
This controller only fits if the inside of your fatbike's motor plug is this colour. Not sure? You can check it in 1 minute.
Frequently bought together

Customer Reviews
Replaced without any fuss. The print is already wearing off a bit.
Sent an email and then ordered the right one, better than I expected
Connecting it was done in no time. I couldn't have done better.
Fits the S20 as described. I got good advice beforehand.
the V20 Cross starts up normally again.
On our own yard it goes nicely.
The plug colour matched my cable.
Just good, no fuss. Arrived well packed.
On private land it does fine.
Good replacement for the original controller. I got a proper reply to my email. More than satisfied.
Set it up exactly as explaned on the site.
Product information
The benefits at a glance
- Tunable up to 32 km/h
- Restricted: 6 km/h throttle
- 5 cables, no alarm
- Suitable for: QMWheel V20, V20 Pro and S20 Pro with black motor cable (small motor)
- Version: 250W, black motor plug, 5 connection cables without alarm
- Speed: tunable up to 32 km/h on private terrain, delivered limited to 25 km/h
If your V20, V20 Pro or S20 Pro has a black motor plug, it has a smaller 250W motor inside. For that motor this is the tunable controller: together with a tunable H6C display with killswitch you get 32 km/h out of it. The small motor does not have more in it; the 45 km/h only applies to the red plug version.
This model does not fit motors with red plug. If you do not know which colour your plug is, pull it loose as shown in the Colour Check. Replacing it is a matter of five plugs and requires no experience. Riding tuned remains restricted to closed-off terrain.
Replacing a new controller is actually very simple: there are only 5 cables you need to connect. Still can't get it to work? Feel free to WhatsApp us at 06 82090642, and we'll help you out quickly.
Pro-tip: first remove the saddle from the bike, this way you can easily access the controller to replace it.
WhatsApp chat only. We can't take calls, not even via WhatsApp.
Important: this controller only works with the S20, S20 Pro, V20 Pro, and V20 Cross, and only in combination with a black motor cable. Do you have a different fatbike model? Then you need a controller that matches it. On our site you can find the right controller for your model.
Difference between restricted and tunable: it is in the software, not in the number of amps.





