Lao Wang knows that a young China girl has invented a new bicycle, which meets our requirements. Compared with traditional bicycles, this kind of bicycle has no chain, so there is no need to worry that the chain will break when the bicycle is too fast. It is on this basis that women speed up the bicycle. Traditional bicycles have the fastest speed, 20 kilometers per hour, and are only suitable for short trips. If the distance is too far, the owner will easily feel tired. The new bike is different. 13 variable speed can reach 200 kilometers per hour, which is much stronger than the electric bicycle we use now, so it is not a grade.
The super-fast speed is the biggest highlight of this new bike. Because there is no friction resistance of the traditional gear chain, it can effectively improve the transmission efficiency of bicycles, increase the speed and save our physical strength. The rear wheel has 13 grooves and 13 speed changes, which is equivalent to 13 gears. It can be said that inventors have made great efforts to make such a safe chainless bicycle. The inventor scratched his head when he encountered many difficulties in the early days of his invention. When the inventor went to the dentist's hospital to fill his teeth, the dentist suddenly thought of using that electric mill to sharpen his inspiration.
He found that the grinding disc is a soft shaft and runs at high speed, so the shaft can be used and rotated from any angle. So it can be used on this bike. With this inspired idea, it took the inventor nearly three years to finally test it successfully. This bicycle comes from its frame shape, and its overall structure ranks first in the world. The frame, including the hub, is an integral die casting process. Its lathe material is magnesium alloy, which is 30% lighter than aluminum, and its strength and flexibility are similar to aluminum. At the same time, it obtained the national invention patent.