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Tired of Flats

  • Posted May 7, 2001

Q: I'm a new cyclist with 685 miles on my road bike which has 700x28C tires. I rode my first century last week and had 2 flates, both on the rim side of the tube. Today I took a 30-mile ride and had another flat. This time the tire was punctured. What can I do?

A: The source of your first 2 flats may be a faulty rim strip, because the punctures were on the tube's belly. Remove the tire and tube and make sure the cloth or nylong strip is covering all the spoke holes. Exposed sharp edges can cut the tube. If the rim is OK, you may have had a tube with a defective seam. Your latest flaw was caused by something penetrating the tire and popping the tube, which is bound to happen occasionally. Fortunately, repairing a flat is a 5-minute chore, not a big deal. If you want to reduce the risk, consider installing tires with a puncture resistant belt under the tread. Jim Langley.
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