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From: mancello@acf4.UUCP (Homeboy#1)
Newsgroups: net.bicycle
Subject: Tire Pressure, etc.....
Message-ID: <5490003@acf4.UUCP>
Date: Wed, 11-Sep-85 21:52:00 EDT
Article-I.D.: acf4.5490003
Posted: Wed Sep 11 21:52:00 1985
Date-Received: Sat, 14-Sep-85 06:04:04 EDT
Organization: New York University
Lines: 16


I do most of my riding on Specialized Touring II's which have a recommended
tire pressure of 100 psi.  I usually inflate them up to about 120 psi with
no problems.  My question is, how high can I safely inflate Specialized
tires before they blow off the rim?  I have heard that Specialized claims
they can take upto ~ 200 psi before blowing.  Although, I doubt if they
endorse such pressures for their tires.

Also I have heard that in hot weather or excessive braking one should lower
the pressure in their tires because of the air expansion in the tube do to
heat.  Is this significant?  How much can the pressure increase due to
air temperature or braking?  Are there any valid formulas for determining
the increase in pressure?


					-Dominic Mancello (cmcl2!acf4!mancello)