Which gears is the fastest for bicycles and mountain bikes?

General mountain bike gears range from 20 to 30 speeds. Many riders are still very unfamiliar with the selection of gears.

What is the fastest speed for bicycles and mountain bikes?

Many riders who are just getting started may think that the more gear shifts, the better. Actually, it is not. The choice of gear shifting needs depends on the specific needs of the rider. Many riders hear the 30-speed and the more gears. In fact, after riding for a period of time, you will find that there are only about 3 gears used in our normal riding process to meet the demand. Not so many, the more bicycle gears, The more the relative pressure plate, the more pressure plate, the weight of the bicycle will be relatively heavier.

In terms of speed change, the cadence is adjusted by the size ratio of the front chainring and the rear chainring, so as to get the speed adjustment. The faster the speed, the greater the force you need to pay. Downhill is also different. For uphill, we need to use the small disk to drive the big disk, so as to achieve a higher cadence and save energy.

Generally speaking, there are four main types of shifting:

1. 20-speed: 2 front chainrings and 10 rear chainrings to obtain 20 different gears;
2. 21-speed: 3 front chainrings and 7 rear chainrings to obtain 21 different gears;
3. 22 speeds, 2 front chainrings and 10 rear chainrings to get 22 different gears;
4. 30 speeds, 3 front chainrings and 10 rear chainrings to get 30 different gears.

Why is a mountain bike called a mountain bike? Because taking into account mountains, forest roads, up and down slopes, and bumpy roads, different gears have a great effect on the riding of mountain bikes. Especially the largest chainring with the smallest chainring is also a wrong riding method. In pursuit of speed and choose more gears, then buy a road bike. Therefore, in the choice of mountain bikes, generally you can buy a 21-speed mountain bike.