These are a solid "literally" upgrade from the factory rubber valve stems. Pick you're favorite colors!
If it makes it easier to check air pressure, riders are more likely to check/add air, which is safer and extends tire life.
In some scenarios you will need a thin-walled socket for installing the nut on the back side of the valve stem or take an old socket and grind it down. Locktite on the nut also helps keep it in and snug even when the rubber shrinks/degrades over a year.
