The frame uses high carbon steel, which has High hardness and good abrasion resistance. It uses a 500W brushless motor with high speed, long service life, no friction and internal friction,12-tube controller, 48V20A or 60V20A lead-acid battery.It can drive 40KM-50KM one full charge and three gears speed. The speed range is from 0-28KM/h. It has a folding child chair in front of the seat with armrest more comfortably and safely, which is very suitable for a family with 3 person. You can change the seat into 1-3 flexibly according to your needs. And there is also a storage box under the seat. It uses the drum brake ,which is good for maintenance. You can put some stuff inside. We can also customize your needs like upgrading the motor to 800W or 1000W. For mass quantity order, we can add your logo on the tricycle body or customize the color. It’s suitable for the adults and the elderly. Welcome to contact us for more details.OEM 48V High Powerful Bike Electric Tricycle 3 Wheel Electric Tricycles Adult