It's good to exercise and ride a road bike. Now you don't even have to ride dirt roads for exercise and fitness. Nowadays, many mountain roads are not potholes, but asphalt roads. Even if it's a little broken, it's not so dusty. Stone road, just buy a road car. Choosing a road car, on the one hand, is not very laborious and can also play a role in fitness. And you don't have to exercise every day, so it's more convenient to put it on. Secondly, there is no need to strengthen training, and there is no need to challenge the limits of your fitness. The characteristics of road bikes are as follows:

1. The tires are narrower than ordinary bicycles, and the tire pressure can reach more than100-200 psi (PoundSpersquareinch), so the rolling resistance when driving is much smaller than that of mountain bikes.

2. The tooth ratio between the toothed plate and the flywheel is very large, which can reach 53: 1 1 or even higher.

3. Nowadays, road bicycles use a lot of new materials, such as titanium alloy, carbon fiber and advanced aluminum alloy. Therefore, the weight of road bicycles is very light, which can reach less than 5kg, but the racing car stipulated by the International Self-help Federation cannot be less than 6.8kg.

4. Generally, tires are made of very hard materials, which is convenient for athletes to exert their strength. This is very different from mountain bike.