To determine the motor hub size, measure the diameter of the motor shaft and the diameter of the hub opening. The hub opening should be slightly larger than the motor shaft diameter to allow for a secure fit without binding.
You can retrofit your existing bike with a hub motor, which is a type of electric motor that is installed in the wheel hub of a bicycle. This enables you to convert your conventional bicycle into an electric bike, providing additional power and speed to your ride.
A hub motor can be installed on many types of bikes, including road bikes, mountain bikes, and commuter bikes. However, the installation process may vary depending on the bike's frame and components, and it is important to choose a motor that is compatible with the bike's wheel size and specifications.
Converting a hub motor to a mid-drive motor would require significant modification and expertise in electric motor design and fabrication. It is generally not recommended for the average user to attempt this conversion and it may be more cost-effective to purchase a pre-made mid-drive motor system.
