Clicked straight into my S20.
V20, V20 Pro, S20 Tunable Controller 21A (Red Plug)




Ordered before 23:59, delivered tomorrow
Motor plug colour: Red
- 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
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
Works right away on my V20 Pro.
Sent an email and then ordered the right one, the delivery went fine.
The S20 starts up normally again.
Our S20 runs like it used to again. The photos matched what I got.
Sits tight, nothing rattles. The reply to my email took a while.
Good replacement for the original controller. Definitely recommended.
Clear description, so I ordered the right one. Arrived well packed.
Product information
The benefits at a glance
- Tunable up to 45 km/h
- Restricted: 6 km/h throttle
- 5 cables, no alarm
Installing a new controller is actually very simple: there are only 5 cables you need to connect. Still can't manage? 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 makes it easy to 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, V20, V20 Pro, and V20 Cross, and only in combination with a red motor cable. Do you have a different fatbike model? Then you need a controller that matches it. You can find the correct controller for your model on our website.
Difference between restricted and tunable: it is in the software, not in the number of amps.





