Can someone please explain why so many cyclists seem to be clueless about the difference between a valve extender and a valve stem, and yet still manage to inflate their tires without completely blowing them up? Is it really that difficult to understand that a valve extender is essentially a tube that screws onto the valve stem to make it easier to access when you have deep rims, whereas the valve stem itself is the actual tube that the air goes through? And whats with all the nonsense about valve extenders being for deep section wheels - dont people realize thats not the only application for them? And how do people even manage to confuse the two, considering theyre two completely different components? Do people just not read the manual, or is there some sort of mass confusion going on here? And while were on the subject, whats with all the valve stem versus valve extender debates - cant people just be clear about what theyre talking about? It seems like every time someone asks about valve extenders, theres always someone who chimes in with you mean valve stem - no, we mean valve extender, get it straight.