This electric bicycle uses a 400W brushless motor with high speed, long service life, no friction and internal friction,48 v controller ,48V12A lithum battery.It can drive 50KM with one full charge and one grears speed and pedal riding. Anti-theft dual remote control, key anti-theft and remote control anti-theft, dual protection, to ensure the safety of electric vehicles. The rear wheel of the trolley is also equipped with a motor lock, which provides better anti-theft performance and safer travel. It meets our daily travel need.