I had this problem. It was because of the weight of the longer stem. Go 40
miles an hour downhill or hit some bumps and the force of that long stem
pushing back into the rim from the inertia can quickly put a tear in your
tube. You can usually solve this problem by finding a piece of plastic and
threading it down the stem after it's on the rim so that it secures the stem
in one place against the rim. I think that Continental's tubes thread all
the way down? This will keep that heavy chunk of metal from sinking back
into the rim from whatever reason.
Solution #2 .... Switch to tubulars like I did.
Regards,
Aaron
"Ray Plotecia" <[email hidden]> wrote in message
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Quoted message said:Is anyone else having a problem with flats that occur with long-stemmed
Continental tubes? They tear right where the stem enters the tube.Or is it just me after 35 years of cycling and fixing flats?
Ray