Originally Posted by
trombone
I had that problem on an old wheel; it was caused in part by a slightly sharp edge on the inside of the valve hole in the rim. I replaced the rim tape, and made sure the tape covered the hole really well (I didn't use the hole already in the tape, I just covered the hole with tape and then bodged a hole through it, meaning the excess tape kind of covered the edge of the hole as I pushed the valve through.)
Just a thought.
You know, now that I think about it, the other tube looked like it was giving way a little bit in the same spot. I'll go with your suggestion next time I have to take the tire off. Hopefully that will be later, rather than sooner.
I swear, I've been learning so much about repairs, maintenance, and tune-ups since I started commuting by bike. Putting miles on a bike necessitates it. Thank goodness for Sheldon and other helpful people like yourself.
Hell, a bike only has so many moving parts. How anything with a combustion engine can work so long
amazes me.