Here is another eBike conversion kit that turns your existing bicycle electric in minutes. The EvoWheel has a range of over 50 miles with a top speed of 20mph. It has 250W of power and weighs only 16lbs. You can install this electric bike wheel in under a minute.
The EvoWheel has Bluetooth, so you can interact with it and check ride data on your smartphone. iOS and Android devices are supported. A display unit is available to let you check riding speed and power output in a real-time.[where to find it]