Unfortunately I have to sell my electric bicycle due to a bad knee. The bike is in good condition. The battery is strong. 21 gear shifter you can ride unassisted or add pedal assist at various strength or simple twist the throttle and go! Top speed is around 60 km/hr and distance 60-80km depending on riding style. I have upgraded the brakes with ceramic pads, upgraded the seat (have original as well), upgraded safety mirrors and uprgraded cruising tires much better for riding streets than the original knobby style. I have also added storage on the back, a phone holder and a water bottle holder. The motor is 1000 watt and strong and the battery is excellent condition 48v16ah. The charger is included. With upgrades this bicycle cost is around 40000 baht. I will sell for less than half. I recommend riders be 170 cm or taller due to the larger size of the bike.