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.And there is also a storage box behind the seat. It uses the drum brake ,which is good for maintenance. It uses the 3.00-8 fat Vacuum tires which has good quality and long life. It has dual remote control, you can use the key to lock or turn it on, can also use the remote control. 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. For the after sale service, we provide battery and motor 1 year warranty, and other parts 6 months. Welcome to contact us for more details.