Should the original valve stem be used when changing tires?
2 Answers
When changing tires, the original valve stem does not need to be used. Simply replace it with a new one that is compatible. Introduction to valve stems: The function of a valve stem is to inflate and deflate tires, as well as maintain the seal after inflation. A standard valve stem consists of three main parts: the valve stem body, the valve core, and the valve cap. Types of valve stems: Valve stems can be categorized by usage: bicycle valve stems, motorcycle and electric vehicle valve stems, car valve stems, truck and bus valve stems, agricultural and engineering vehicle valve stems, and special-purpose valve stems. They can also be categorized by the presence of an inner tube: tube valve stems and tubeless valve stems.
When changing tires, I always recommend replacing the valve stem as well, because it's like the heart valve of the tire. If it ages and leaks, at best it will cause tire deflation affecting driving stability, and at worst it may lead to a blowout. Most valve stems are made of rubber and can crack or harden over time. Changing tires is a good opportunity to replace them - it's not costly but doubles safety. I've seen many car owners try to save money by reusing old valve stems, only to experience air leaks months later, forcing them to remove the tires again and wasting both time and repair costs. Normally, valve stems have a lifespan of about 5 years. It's best to replace them every time you change tires to avoid accidents. Professional technicians usually proactively recommend this option - don't overlook major safety for small savings.
