1. The tires are narrower than ordinary bicycles, and the tire pressure can reach 100-200 psi (pounds per square inch) or more, so the rolling resistance during driving is much smaller than that of mountain bikes.
2. The gear ratio of the flywheel to the crankset (ie, the gear ratio) is large, and the general road bike tooth ratio can reach 53:11 or even higher.
3. Carbon fiber, high-grade aluminum alloy materials, etc., so the weight of road bikes is very light, can reach below 5kg, but the international self-associated vehicles must not be less than 6.8kg.
4. Very hard materials are commonly used to make athletes feel power. This is very different from a mountain bike. Because road bikes are riding on roads with better road conditions, there is no need to consider the problem of absorbing vibrations as in the latter case.