Exactly the right controller for the C80. Better than I expected.
Ouxi V8 / C80 Tunable Controller 21A (Red Motor 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: V8, C80
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
Fits the C80 as described, now that's what I call service.
No more glitch when pulling away. Arrived well packged. Still happy with it.
Fits my C80 exactly, the packaging was sturdy enough.
At the campsite the C80 rides fine now.
Sent an email and then ordered the right one. Not the prettiest, but functional. The communication was clear
All the connections matched. My question was answered quickly. That's how it should be.
My son's V8 rides again. Fine shop.
Old controller out, this one in, I would order here again.
This one fitted where the previous one didn't.
The controller was well packed. Better than I expected. I'll come back here.
The explanation on the site was completelyy right. The delivery went quickly.
No more error message on the display.
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 V8 and Ouxi C80 with red motor cable (small 250W motor)
- Version: 21A, 250W, red motor plug, 5 cables including alarm connection
- Speed: tunable up to 50 km/h on closed-off terrain, delivered limited with 6 km/h throttle
This controller is intended for the Ouxi V8 and C80 with the small motor and the red motor plug. It has the alarm connection the Ouxi models use and works together with the tunable HC80 displays with killswitch, with or without NFC. With such a display your V8 or C80 keeps going up to 50 km/h.
If there is a black plug on your motor cable, this is the wrong model; for that there is the black version. The Colour Check shows you in six steps how to pull the plug loose. Replacing it takes a quarter of an hour without special tools. Riding tuned is only allowed on private or closed-off terrain, not on public roads.
Installing a new controller is actually very simple: there are only 5 cables you need to connect. Still can't manage it? 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 on the V8 and C80, and only 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.





