1. Different materials
The materials of high-end cars and low-end cars are different. With the demand of strength and light weight, the materials of frame are gradually developed from iron → chromium molybdenum steel → aluminum / carbon → titanium. Thousands of mountain bikes are made of aluminum or carbon fiber. These two materials are not only light in weight but also will not rust. However, hundreds of mountain bikes use cheap steel. The steel is heavy. It will be difficult and easy to rust in the process of riding.
2. Different transmission
The biggest difference between mountain bikes and ordinary bicycles is that they can change speed according to the actual situation. The transmission materials of hundreds of mountain bikes are steel, and the fingertips are plastic, so the strength and accuracy can be imagined. The transmission of thousands of mountain bikes is made of aluminum, and the dial is also made of aluminum alloy. The accuracy, strength and weight are very excellent.
3. Different brakes
Hundreds of mountain bikes use v brake or disc brake. The cost of V brake and disc brake is low, and the impedance of the strip and brake block exceeds the impedance of the road. For this type of brake, if you release the brake lever when you start taxiing, but the response is very slow. The hydraulic disc brake is used for thousands of mountain bikes. The hydraulic disc brake is light, which makes the mountain bike more flexible, not easy to lock, and has high strength, but it needs regular maintenance.
