About V20 Cross - Step-up Controller (Red Motor Plug)
The controller connects your bike’s electrical components. Choose the version suited to your model and existing electrical system.
Product information
Suitable for: QMWheel V20 Cross
Type: Red motor plug, 21A (500W)
Speed: can be increased to 45 km/h
Looking for a new Controller for your QMWheel V20 Cross? This Controller replaces your defective or damaged Controller as the original and offers excellent, durable performance. Made of high quality and developed with the latest software. The product comes in a compact packaging and can easily be assembled yourself.
Please note: high-speed driving is only permitted on private property.
Compatible with: QMWheel V20 Cross
(Make sure the part matches your part to avoid disappointment)
Specifications
- Product
- V20 Cross - Step-up Controller (Red Motor Plug)
- Product type
- Controllers
Benefits at a glance
- 21A version
- Red motor connector
- For QMWheel V20 Cross
Does this product fit your bike?
Check the model, battery voltage, motor connector and matching display. Connector colour alone is not sufficient.
Use and operation
The controller manages electrical operation between the battery, controls and motor. The correct type depends on the bike’s configuration and connected components. Compare connectors and label specifications as well as the model name.
Preparing for installation
Have the correct version, product information and suitable tools ready before starting. Check the new part before removing the old one. Take photos of the existing mounts and connectors if needed.
What should I check when installing it?
Disconnect power and have a technician check the connections if unsure. After installation, check assistance and brake cut-off operation.
Checks after installation
Check the mounting and operation before using the bike again. If there is play, rubbing, an error message or unusual operation, stop and have the cause checked.
Care and checks
Keep cables free from pinching and secure the controller in its intended position. Check connectors for moisture, damage and loose contacts. Recurring faults require diagnosis; connecting a different controller at random is not a targeted repair.
Delivery and support
Order before 23:59 today? Delivered tomorrow. Keep your order number and send clear photos of the product, any connectors and the problem. We can help with the next step via WhatsApp. FatbikesForYou’s terms apply to delivery and returns.
Frequently asked questions about V20 Cross - Step-up Controller (Red Motor Plug)
What should I check before ordering?
Check the version and specifications above first. Compare them with your current product and the selected options. If you are unsure, send us photos so we can help compare the differences.
What is included?
The product description lists the package contents. Only parts or accessories explicitly described as included come with this order. An item shown in a photo is not automatically included.
Unsure which version to choose?
Send us your bike model and clear photos of the existing part and connections via WhatsApp. We will help you choose the right version.
Personal advice via WhatsApp