Back in the 80s, I ran ma-40s that Kieth Bontrager cut a rerolled down to 26" rim diameter I ran them on my mountain bike for 20 years and never had a problem with tires coming off or the rims cracking.
I still have some of the Mavic MA-2s in that size and would not hesitate to build them up and run RTP tires. I'm sure there are theoretical reasons to avoid the skinny rim/fat tire combo but in practice it doesn't concern me much. YMMV Ray Vallejo CA -- 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 https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
