Clyde
Wizard
I hopped on the bike after work yesterday to ride home and the handling was for crap. I stopped before I even left the parking lot and checked my tire pressure and the front was down from 38psi to about 20psi (i had just checked it in the morning and had . I checked the tire and couldn't find any signs of a puncture, so I rode over to the nearby gas station and filled the tire back up to 38psi and rode home. By the time I finished my commute, it was down to 36psi.
I sprayed some water on the valve stem (90-degree -- purchased from a SlowBoyRacing on this forum) and it's leaking from the "base" of the stem. When I put pressure on the valve (checking or filling), I can hear air escaping. It doesn't appear to be a loose core, and the air escapes with pressure on the stem but not the valve core itself.
I didn't install them, but it looks like there is a nut that goes on the inside of the rim. Since I can rotate the stem fairly easily, I'm assuming that nut backed off a little and is letting some air leak through the rubber seal.
Is there anything I can do without taking the tire off?
Like I said, I tried rotating the stem (clockwise), and it didn't seem to tighten up after one revolution. I'm pretty sure I have to pull the rim off the bike, then take it to the shop and have them unmount the tire, tighten (or replace) the stem and put everything back together again.
I sprayed some water on the valve stem (90-degree -- purchased from a SlowBoyRacing on this forum) and it's leaking from the "base" of the stem. When I put pressure on the valve (checking or filling), I can hear air escaping. It doesn't appear to be a loose core, and the air escapes with pressure on the stem but not the valve core itself.
I didn't install them, but it looks like there is a nut that goes on the inside of the rim. Since I can rotate the stem fairly easily, I'm assuming that nut backed off a little and is letting some air leak through the rubber seal.
Is there anything I can do without taking the tire off?
Like I said, I tried rotating the stem (clockwise), and it didn't seem to tighten up after one revolution. I'm pretty sure I have to pull the rim off the bike, then take it to the shop and have them unmount the tire, tighten (or replace) the stem and put everything back together again.