Are tire valve caps universal?

Tire valve caps are universal to a certain extent, but the following points should be noted:

1. Basics of Universality
   Valve caps for most vehicles, including cars, motorcycles, electric vehicles, and bicycles, are relatively standardized in design, using similar materials (e.g., rubber, metal) and installation methods. In theory, they are universal. For example, standard rubber or metal valve caps generally fit common models.
2. Size Differences
   Valve cap sizes may vary slightly between different models. Some high-end models or specially designed wheels may use non-standard valve sizes. In these cases, it is necessary to select a matching valve cap. Otherwise, a tight seal or insecure installation may occur.
3. Installation Precautions
   Even if the valve cap is universal, ensure it fits snugly against the valve cap during installation to prevent looseness and air leaks. Overtightening can damage the valve core or cause a poor seal.

Without tire valve caps, the pressure will drop by 0.3 bar per month.

Without the tire valve caps, the valve stems are "naked." The wheels kick up road dust, which in turn causes brake pad friction powder to fly out, allowing dirty, muddy water to seep into the valve stems and cause leaks!

Without the tire valve caps, muddy water and other impurities can significantly accelerate the wear and tear of the tire valve core. Normal moisture corrosion won't cause substantial damage to this metal; at most, it will corrode, causing white bloom or rusting to a verdigris color.