After a few hours of somewhat technical single track riding today, I was on
the fireroad back to the parking lot, when I got a flat. I inspected the
tire and couldn't find any thorns, so I assumed it was a pinch flat. When
I got home, I inflated the tube and dunked it in the sink to find out where
the leak was. To my suprise, I see that the leak caused is a small hole
right where the valve stem meets the body of the tube (almost like at the
base of the stem). That seemed rather odd..is this common? Perhaps it's
some other mode of getting a pinch flat or is it a mfg defect?
Mountain Bikes · Public discussion
Odd flat
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- Mountain Bikes
- Published
- 16 August 2004
- Last activity
- 16 August 2004
- Original author
- Brett Jaffee
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- 2
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Brett Jaffee said:
After a few hours of somewhat technical single track riding today, I
was on the fireroad back to the parking lot, when I got a flat. I
inspected the tire and couldn't find any thorns, so I assumed it was
a pinch flat. When I got home, I inflated the tube and dunked it in
the sink to find out where the leak was. To my suprise, I see that
the leak caused is a small hole right where the valve stem meets the
body of the tube (almost like at the base of the stem). That seemed
rather odd..is this common? Perhaps it's some other mode of getting
a pinch flat or is it a mfg defect?Wear & tear. Also comes from pumping technique, and screwing the little
donut thingy on too tight (and too often).Bill "have had a bunch of 'em...strangely more on road tubes lately" S.
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