When the bicycle rotates, one tooth will follow the other tooth, so when it walks in front, that is, when it passes 26 teeth, it passes behind, that is, 10 teeth, that is, 1.625 turns. The rear gear is fixed on the rear wheel and rotates synchronously. So at this time, the rear wheel turned 1.625 times, multiplied by the circumference of the rear wheel.

Bicycles, also known as bicycles or bicycles, are usually small land vehicles with two wheels. After people get on the bus, they are green and environmentally friendly vehicles powered by pedaling. British bicycle, in which bi stands for two, and cycle stands for wheels, that is, a two-wheeled bicycle.