Good Quality Heavy Duty Construction Wheelbarrow

Because of the law of the center of gravity, it is very easy to overturn. It is strange that ancient Chinese people used it to carry people and carry people. It is a long journey and smooth and light. Therefore, its creator and the first driver must be a mechanical engineer with courage and knowledge. As for the shaft of a unicycle, its length, flatness and inclination, the height, straightness and inclination of the strut, and the square and elliptical shape of the wheel cover almost vary from place to place and from person to person.

In the past, unicycle wheels were made of wood, ranging from large to small. The smaller one is flat; The larger one is higher than the wheel, and the wheel is divided into left and right sides, which can be used to carry objects or sit people, but both sides must be balanced. Between the two handlebars, hang a "car trip". When driving, put it on the shoulder and hold the handlebars with both hands to help. Generally, a unicycle is pushed forward by one person, but there are also large unicycles for carrying things. There are two handlebars at the front and back, which are called "second handlebars".