What is the lifespan of an aluminum alloy frame?

[CollinAnn]

Generally, it lasts more than 5 years but less than 10 years. Here is the relevant content introduction: General frame: Generally, the frame is not sold immediately after production, and it usually needs to be stored for a period of time, which means the frame you get may have been in stock for a long time. Therefore, not all frames have the same lifespan. Fracture: As long as it is metal or alloy, there will be fatigue fracture problems. The premise is that as long as the force it bears is lower than the fatigue strength limit of the metal, fatigue fracture will not occur. Generally, the safety factor is considered in the design of bicycle aluminum alloy frames. Usually, the frame itself will not fracture, but if the production quality is poor, the weld is prone to fracture.