This problem may be caused by the unstable connection between the Bluetooth display and the kit. Please connect the kit with the APP to see if the mileage can be displayed. If the APP does not have mileage displayed, try “restore factory” in the setting page; If the APP displays the milea...

Please follow the steps below to solve the problem:Check whether the wheel, the controller, etc. are correctly installed, please install them according to the user manual;Tap “restore factory” in the setting page of the APP;Re-calibrate the gyroscope angle in the APP.

The Items are listed in the table below and you can click on it to buy a spare part:KX30S All in one ebike kitKF30S bottle battery ebike kitKD sereis saddle bag battery ebike kitKN20S bottle battery ebike kitBZ Series Rear rack battery ebike kitHub(Inc. Battery,controller&motor) with rim and tir...

Approximately 3 hours at the mains.  The battery comes with a charger.

This is a common question. Your tyre size should be written on the side of your tyre. There will be a series of numbers showing the diameter and width. It will look something like this: 700c x 29. Occasionally different cycle manufacturers will use a different scale. If you have any problems wo...

Yes. We find the vast majority of people don’t need a spare, but if you want to go on very long bike rides you can double your range by charging a spare battery and taking it with you. You can purchase a spare battery here.

The battery is 280mm x 75mm.

The entire kit weights 6.8kg.

The battery holder must be positioned at an upward slope, therefore it’s best to be fixed on to your bike-frame. This is because there is a gyroscope inside it, which is part of the pedal assist technology.

Yes, the kit fits both V brakes (sometimes called rim brakes) and disc brakes.