I don't know, but you're welcome to come ride my bike and tell me.How can a valve stem rattle when it has 100 + lbs of pressure pushing on it to hold it in place? I have never used the nuts in 30 years and was overjoyed when they invented threadless valve stems.
MarvinK said:no. some argue it helps prevent rattling and makes it easier to pump up tires with low pressure and short valves... others argue just the opposite.
It can rattle because it doesn't have 100 + lbs of pressure pushing on it. "100 lbs of pressure" means 100 lbs per square inch (psi). A valve stem is about 0.25" in diameter, making its area is Pi x r x r = 3.14 x 0.125 x 0.125 = 0.049 square inches. So at 100 psi, there's 100 x 0.049 = 4.9 lbs of pressure on a valve stem. That's not a whole lot of pressure, so it can rattle.siclmn said:How can a valve stem rattle when it has 100 + lbs of pressure pushing on it to hold it in place?