Re: run-flat tires

[Virtual Bob <hey9811@yahoo.com>]

For now, there are two kinds of approach to those "run-flat" tires -- the
true run-flat, with re-inforced tire walls; and those of
puncture-resistant tires. I imagine the latter can be applied to almost
any tire, although currently one manufacturer has done so (sorry, the name
escapes my mind for the moment). The advantage is cost -- the mod to the
tire is minimal to none, and the additional cost of the chemical is small
($5 per tire?). The disadvantage is these tires will only contain certain
small-size punctures (e.g. common small nails and objects). These tires
cannot really run with zero pressure since they're usually regular tires
to begin with.

THe true run-flat's advantage is that they can really run with zero air
pressure. The disadvantage is price -- the price of manufacturer, the
installation of the tire-pressure monitor devices, and the questionable
handling. Some people also questions the tire's capability to be used
again after being run at zero pressure for a distance.

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