A good bicycle frame must meet the three conditions of light weight, sufficient strength and high rigidity. As a bicycle sport, the frame is of course the weight
The lighter the better, the less effort is needed and the faster you can ride:
Enough strength means that the frame will not be broken and bent under the high-strength riding;
High rigidity refers to the rigidity of the frame. Sometimes a frame with poor rigidity may not have safety concerns, but the strength of the frame is transmitted when riding.
The guide difference makes the rider feel like the bike is dragging when stepping on it. Even if the frame is light enough and strong enough, but the rigidity is poor, it is still one thing.
A substandard sports bike. Among the car types on the market, the frame materials that can meet the above-mentioned good frame standards are: aluminum alloy,
There are four types of carbon fiber, titanium alloy and alloy steel.

1. Alloy steel material:
Steel is the most traditional frame material for bicycles. A variety of modern alloy steels can be used in rigidity, elasticity, transmission and stability.
Good results are obtained. The only disadvantage is that the weight t of the steel is a defect, and the weight is heavier than the t number of materials. -Generally speaking alloy steel
The material price is relatively cheap. However, the good price of steel frame made of steel and molybdenum steel is not cheap.
Material can be compared.

2.Aluminum alloy:
The aluminum alloy sense is sensitive, lightweight, lighter, and highly rigid, but at the same time it also conveys the vibration response of every J point on the ground.
Comfort is slightly sacrificed. Relatively cheap and there are many styles of frame, it is a variety that is worth buying by everyone.

3.Carbon fiber:
The characteristics of carbon fiber: elasticity, stable riding feeling, long-distance cruise continuity, and high comfort. The disadvantage is that the price is very high, and I
The average service life (calculated from the factory) is only 5 or 6 years. Even if there is no bump in the frame within 6 years, its chemical formula is still
E is decomposed, and it is not recommended for riders to continue using it.

4.Titanium alloy:
The characteristics of titanium alloy are very similar to the combination of aluminum alloy and carbon fiber. It can have elasticity similar to carbon fiber and can also enjoy aluminum alloy.
Its lightness and rigidity. Its special point is due to the jump of the expansion coefficient, which makes it impossible to paint on the metal surface, but fortunately the titanium alloy
It is not easy to corrode and oxidize, and the color is also unique. But its price is also unmatched by the first three.