Well, that’s the thing I brought up in response to Jan, although as I have tried finding that information on the Internet I have come up blank. Maybe I am remembering it incorrectly. As I recalled it, a guy named Carl Fogel used sheets of paper on the floor and a stamp pad to create an image of the tires’ contact patch. However, what I have turned up is discussion of different pressures in the same tire rather than different width tires; the image of the contact patches is no longer available:
http://www.cyclingforums.com/t/374655/contact-patch-size-versus-tire-inflation There may be something relevant in the following, I have not had time to read the article closely; the variable seems to be rim width rather than tire width. The differences in the graphics seem to be rather highly exaggerated in an effort to justify buying expensive rims: http://flocycling.blogspot.com/2011/11/flo-cyling-contact-patch-why-wider-is.html It’d be interesting to compare different width tires, possibly also at different pressures. On Jan 2, 2014, at 9:48 AM, Ron Mc <bulldog...@gmail.com> wrote: > A good soft tire with high tpi casing will have a spherical contact patch, > while a skinny hard high pressure tire will have an oval contact patch of > essentially the same area, so there is little difference in that effect on > rolling resistance. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.