This electric mountain bike is powered by ORUIO original ebike hub motor & lithium battery technology. Weighting only about 15kg, you can literally lift up this electric mountain bike and carry up stairs like you normally do. The motor and battery are small but powerful, the speedo meter uses LCD interface with power output control, it has both throttle mode and pedelec mode (Power Assist). The bag in the midden can be used to store things like you mobile phone, allen key set, etc. Check out the video to see it in action.