I've used 559X1" tubes in 559X2" tires; no problems. I've used 559X2" tubes in 622X60 mm tires: no problem (except that they are very, *very* hard to install, with that extra 2 1/2 inches of rim to clea)r. I've used 622 X 28mm tubes in a 60 mm tire; no problem.These were situations where I didn't have the right tube. Ordinarily, I use 622X35-37 mm tubes for my 29er instead of buying more expensive "twentyniner" tubes. I've regularly use 26X1" tubes in everything up to 38s (1.5 inches) for years. Oh, and I use 650c skinnies in 559X1.5s; again, no problem.
Tubes stretch, at least up to a point. I wouldn't use 26X1" tubes in a 622X60 mm tire, at least not if I could help it, but I expect such a combination would get you home. On Sat, Feb 28, 2009 at 12:53 PM, Lesli <lesli.lar...@gmail.com> wrote: > > Just confirming that one could use 26" (mtb) tubes for 650b tires. I > just checked out the Riv site and 26" tubes are 4.00, the 650b tubes > are 8.00! Why pay more if the mtb versions would work fine (and > should prove to be lighter than those Schwalbe versions)? > > I'm thinking of buying the skinny (26x1") version for use with my 650b > Michelelin Megamiums and Riv Maxy Fasty tires. Does that sound > reasonable or should I get the slightly wider, "medium" sized tube. > > Let me know what you think. > > Lesli Larson > Eugene, OR > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---