For people with hearing loss, the sound signals from the inner ear to the brain will be weaker than normal, and it's possible that the brain amplifies these signals too much to compensate, resulting in hypersensitivity. However, this doesn't explain the cause in those with hyperacusis and no hearing loss.
Bicycle Valve Stem Types. There are three types of bicycle valve stems in use: Schrader, Presta and Woods/Dunlop. The Woods or Dunlop valve stem style is much more rare than the other two. Any wheel rim that fits a Schrader valve can also fit a Woods or Presta valve.
Is there any advantage/disadvantage to using either rubber or metal valve stems when installing tires on new wheels? The McGard lug kit I'm ordering comes with some chrome stems, but if rubber proves to be better, than I'd rather go with them since my wheels are black.ithout Locktite, there's also a chance the nuts can back off inside the tire. You'll never know until the valve stem shoots out of the wheel like a dart from a blowgun. Most metal valve stems install from the inside and have the nut on the outside.