Not only that, but (having just ridden with Mark) he has the ability to levitate the bike at will and engage warp drive. Perhaps the ether drag of a sew-up is less than that of a clincher ...
Seriously, at the low end of a sound pressure choice, rim protection is the issue. Road condition and quality enters into it. I tried a few weeks back to ride my bike-that-has-clinchers-but-might-not-be-on-topic with the pressure set for 15% sag per the Frank Berto chart. On smooth recent asphalt it was real good, but on one of our local reputed (no longer deserved!) "great cycling" roads, I think I got some new rear rim dithers. So general recommendations need to be considered based on local conditions and how you ride. If one is lot better than I am about watching where the heck you're going, you might get away with a softer tire.
Ken Freeman Ann Arbor, MI USA
On Mon, Jun 1, 2009 at 7:16 AM, Tom Sanders <tesanders@comcast.net> wrote:
> Folks,
>
> Bear in mind that Mark may get away with 100 PSI, but that the rascal
> doesn't have an ounce of fat on him. He is about 155# of pure muscle and
> faster than a Jack Rabbit. For us of the 200# persuasion, I think
> perhaps
> a bit more tire pressure may well be in order.
>
> Tom Sanders
>
> Lansing, MI USA