RE: [Randon] Re: How significant is tire rolling resistance compared to other factors?

[Leslie Tierstein]

I remember the very first twin century I did -- Philadelphia to Cape May and back the next day. It was a very rainy spring day. Overnight accommodations were at a 3-story motel shaped as a 3-sided square, with an exterior walkway and all rooms opening on that walkway and facing an open courtyard in the middle. There were chairs set up outside each of the rooms. That evening, as I looked around the courtyard, all I could see, sitting in all of those chairs, were bunches of guys sewing up their tubular tires.

Leslie

-----Original Message-----
>From: Jim House <jho...@ccsol.com>
>Sent: Apr 13, 2010 9:38 PM
>To: 'Veronica Tunucci' <vero...@comcast.net>, 'Bill Gobie' <bi...@billandlorene.com>, 'randon subscribers' <ran...@googlegroups.com>
>Subject: RE: [Randon] Re: How significant is tire rolling resistance compared to other factors?
>
>I can remember straddling the bike at the start line with poring rain. The
>sould I remember most is EVERYONE letting some air out of the tubelars - and
>then again some more the longer the introductions went...
>
>Jim House
>
>-----Original Message-----
>From: ran...@googlegroups.com [mailto:ran...@googlegroups.com] On Behalf Of
>Veronica Tunucci
>Sent: Tuesday, April 13, 2010 6:09 PM
>To: 'Bill Gobie'; 'randon subscribers'
>Subject: RE: [Randon] Re: How significant is tire rolling resistance
>compared to other factors?
>
>It doesn't apply and is incorrect. In rainy season in my part of the world,
>automobile hydroplaning is common. AAA references the speed for autos at
>closer to 30mph and the other variable is depth of standing water. What
>would be the best bicycle tire for Lance during these wet conditions?
>
>Veronica
>
>-----Original Message-----
>From: ran...@googlegroups.com [mailto:ran...@googlegroups.com] On Behalf Of
>Bill Gobie
>Sent: Tuesday, April 13, 2010 1:33 PM
>To: randon subscribers
>Subject: Re: [Randon] Re: How significant is tire rolling resistance
>compared to other factors?
>
>
>On Apr 13, 2010, at 1:02 PM, WMdeR wrote:
>
>>> Do wider bicycle tires need a tread
>>> pattern to get the water out of the contact area to achieve good wet
>>> traction?
>>>
>>
>>
>>
>> From: http://www.sheldonbrown.com/tires.html
>>
>> Even with automobiles, actual hydroplaning is very rare. It is a much
>> more real problem for aircraft landing on wet runways.
>
>Without reading the original research, it seems incorrect to apply the
>airplane formula to automobiles. Airplane tires more closely resemble
>bicycle tires than car tires.
>
>There must be studies of motorcycle tires. Would that research not be more
>applicable to bicycles?
>
>Bill Gobie
>
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