48V 1000W Bafang/8Fun BBSHD BBS03 Ebike Mid Drive Motor Kit is a geared motor and a chain wheel that is installed on the bicycle bottom bracket, substituting crank shaft, chain wheel and cranks.
- Crank operating motor kit
- Not Street legal, This system can only be used off-street for off-road projects
- Suitable for down-hill and up-hill sport suspension mountain bikes
- Using bicycle transmission, there is always chance of transmission failure due to higher chain tension.
- Super high torque taking mechanical advantage of the gear shift
- Special frame consideration for installation
- Much heavier than hub motor kits
- Some geometrical limitations for down tube battery cases