The density of magnesium alloy is 1.7, which is only 21% of steel and 60% of aluminum alloy. The advantages of light weight are very obvious. In addition, magnesium alloys have a series of advantages. In bicycle applications, they have high rigidity and high bending resistance; excellent shock absorption, and shock and vibration absorption. Magnesium has 25 times more shock absorption than aluminum, making the bike even better. It has good riding comfort; high-temperature extrusion molding processability is good, extruding thin-walled magnesium alloy pipe fittings, significantly reduces the weight of the whole vehicle; the material is pollution-free, and the secondary recovery is simple. It is a green material.

The important load-bearing structure of a bicycle is the frame. All components in the overall weight set. Therefore, it is necessary to choose a magnesium alloy frame with lighter processing weight and better comprehensive mechanical properties to reduce the weight and weight of the bicycle.
Density, Modulus of Elasticity, Tensile Length, Tensile Strength, Breaking Strength, Toughness – by controlling magnesium, aluminum, zinc, and manganese. After proper molding treatment method and other measures, its tensile strength and hardness will be increased accordingly, and its strength and elastic modulus will also meet the needs of the frame, and its own high damping coefficient can absorb impact energy and reduce the impact on the rider. Affect and extend the life of the bicycle.

Due to the excellent properties of magnesium alloys suitable for bicycles, many countries, enterprises, and R&D institutions attach great importance to magnesium alloys and their forming technology and have invested a lot of manpower and financial resources in R&D, and good results have been obtained.
Initially, R&D personnel in many countries used magnesium alloys on a few parts such as handlebars, front forks, pedals, etc. of bicycles. Later, in the research and development process of magnesium alloy bicycle frames, it was found that the deformation process of magnesium alloy through section change and surface treatment reduced some shortcomings of low performance of magnesium alloy and improved its performance. Therefore, the performance of magnesium alloy material can meet the Therefore, it has been widely used in bicycle frames, rims, seat pipes, gears, and other parts.

Advantages of magnesium alloys over other alloys
Magnesium alloys are materials of interest mainly because of their high strength-to-weight ratio, excellent machinability, and low cost. They have a low specific gravity of 1.74 g/cm3 compared to other common alloys such as aluminum or steel alloys. However, they are brittle at room temperature and have poor formability. Their formability increases with temperature, but this requires high energy.

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