They conclude that 25's will roll faster than 23's, 'on average', at a barely perceptible level. Nothing is specifically said about tires wider than that (though it's implied), or whether there's an optimum width. Or at what width and what speed aerodynamics start to matter as much as rolling resistance. The answer may well be different for recreational riders, randonneurs and folks riding at racing speeds.
They also say that 29'ers roll faster than 26'ers, so presumably 700c wheels would have an advantage over 650b. I would tend to believe that based on owning several sets of various widths in each size. Another finding is that latex tubes are up to 10% faster than butyl, in agreement with many riders' experience but the exact opposite result of that reported in VBQ's tire test. Whose tests do we trust when some agree and some don't? There are still lots of questions to be answered. It's nice to see some research being done. Bill On Feb 3, 10:21 am, Eric Norris <campyonly...@me.com> wrote: > Saw this on the Randon list and thought it would be of interest here. Basic > conclusion is that wider tires roll faster than narrow tires, based on > extensive lab testing. > > http://www.cyclingnews.com/features/tech-feature-the-work-of-wheel-en... > > --Eric Norriswww.campyonly.com > campyonlyguy.blogspot.com -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
