What do you know about the size of bicycles

As for the size of the bicycle, let's have a detailed understanding:

1. Label based on wheel diameter. Usually said 12 inches ("), 16 inches, 20 inches are refers to the diameter of the wheel, "refers to the inch, every inch is equal to 2.54 centimeters, so 16 inches of bicycle wheel diameter should be 40.6 centimeters, the larger 29 inches of bicycle wheel diameter should be 73.7 centimeters.

2. Label based on the height of the frame. In addition to the wheel diameter as the standard bicycle model, there is also a frame height as the standard. Frame height is the length from the bottom of the pedal to the top of the seat pole. The 15-inch bicycle under this label is usually suitable for children with a height of 150-165cm.

3. The bike model is mainly used to indicate the height of the bike, whether in terms of wheel diameter or frame height. Of course, taller bikes are usually longer and have wider handlebars.