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Date: Fri, 27 Jul 2001 17:43:54 GMT
From: tomas muehlhoff <NOSPAM_tomasnopsam-900.de>
Subject: Re: tyre size and fuel economy


no way. wider tires have the same overall rolling resistance (simple physics!), but larger tires have less rolling resistance (not so simple physics!) and the aerodynamics can only be locked at together with the car. tomas On Thu, 26 Jul 2001 14:33:00 +0100, "mymatetrevor" <mal.farrellenopsamhalesgroup.com> wrote: > Nate t. G. wrote in message > > > think about road racing bicycles - they use ULTRA narrow tires to > reduce > >rolling resistance. > > > Wider tyres have lower rolling resistance, regardless of whether they are > fitted to a car or to a racing bicycle. What they also have is lower > aerodynamic drag which is the reason for fitting them to the latter. > > Mal > >

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