Handy that it says which plug it is. The packaging was a bit battered. The order was completely right.
Ouxi Q8 Tunable Controller 500W (Red Motor Plug)




Ordered before 23:59, delivered tomorrow
- Tested on a fatbike before shipping
- Easy to install
- Home delivery across the EU
- Not happy? Money back, 14-day cooling-off period
- Fits: Q8
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
setting it up went through the display, done in no time.
I wasn't sure about the plug, got good help through the app. The delivery went fine.
Been in there for a while now nothing else to fault.
Second one I've ordered here. I couldn't have done better.
My son's Q8 rides again.
At the campsite the Q8 rides fine now.
Fitting took me about half an hour. Quick delivery. Top class.
Our Q8 runs like it used to again. All good then. Hats off.
Product information
The benefits at a glance
- Tunable up to 50 km/h
- Restricted: 6 km/h throttle
- 5 cables, with alarm
- Suitable for: Ouxi Q8 with red motor cable (tunable version)
- Version: 500W, red motor plug, five connectors including the Q8 alarm cable
- Speed: Q8 tuned up to 50 km/h on private terrain, delivered at 25 km/h
With this tunable controller and a tunable display with killswitch, the Ouxi Q8 rides up to 50 km/h. It replaces the original limited controller and uses the same five connectors, including the Q8 alarm cable.
The Q8 only comes with a red motor plug in this version; if you find a black plug, get in touch via WhatsApp first. Fitting is simple: lift the saddle, unclip the old controller, connect the new one. Riding tuned is not allowed on public roads, where 25 km/h still applies.
Fitting a new controller on your Ouxi Q8 is actually very simple: there are only 5 cables you need to connect. Still not working out? Feel free to message us on WhatsApp at 06 82090642 and we will help you quickly.
Pro tip: take the saddle off the bike first, so you can easily reach the controller to replace it.
WhatsApp chat only. We can't take calls, not even via WhatsApp.
Important: this controller is intended for the Ouxi Q8 and only works in combination with a red motor cable. Do you have a different fatbike model? Then you need a controller that matches it. On our site you will find the right controller for your model.
Difference between restricted and tunable: it is in the software, not in the number of amps.





