Bicycle, scooter and step board has all elements such as small wheels, high transmission, gear change, low load surface, combined in one vehicle, and instead of bicycle frame has baseplate, tubular profile or cross member

摘要

The bicycle, scooter and step board has all the elements such as small wheels, high transmission, gear change, and low load surface, combined in one vehicle. Instead of a bicycle frame the vehicle may have a baseplate (B), tubular profile or cross member. The high transmission (U) is achieved by gearwheels, chain wheels, or a combination of each. The vehicle may have two running wheels, or three or more running wheels. The vehicle may be designed specially for load conveyance.