The frame part is the basic inexpensive electric bike kit of the electric bike, is also the skeleton and the main body of the electric bike. The other parts are also directly or indirectly mounted on the frame. There are many structural forms of the frame parts. But the overall can be divided into two categories: men’s frame and women’s frame.
There are many structural forms of frame parts, but the overall can be divided into two categories: men’s frame and women’s frame. The frame is generally made of common carbon copper tubes welded and assembled. In order to reduce the weight of the pipe and improve the strength, the higher – grade bicycle is made of low – alloy steel pipe. In order to reduce the resistance of fast running, some bicycles also adopt streamlined steel pipes.
Because the bicycle is driven by the driving force and the cycling skill of the human body, the frame becomes the important structure to bear the impact load caused by the bicycle and whether it can be comfortable and safe to carry the human body. The manufacturing accuracy of frame parts will directly affect the safety, stability, and lightness of riding.
In order to reduce gravity, the general spokes are made into large and small diameter-varying spokes at both ends, and flat streamline spokes are made to reduce air resistance.
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