I had this issue with a tire a few years ago and I really thought the tire was incorrectly made. It blew off the rim in the stand and then I after I had it mounted, it happened again some time later while out riding. It turned out, as the tire fit quite tightly to the rim, that I was pinching the inner tube. This is symptomatic of blowing immediately, but if a very small part of the tube is pinched, it can actually ride like that for quite a while before blowing. Now, I always make the tube slightly tubular with air before installing in the tire, once the tire is fully mounted, I leave the pressure very low and work the bead-seat around the rim both sides and make sure there is no pinch.
Ian A/Canada. On Sunday, March 9, 2014 11:19:06 AM UTC-6, Nick Worthington wrote: > > Querying the collective knowledge here. We're having a recurring problem > with the rear tire on my wife's Betty blowing out at around 60 PSI and > above. Schwalbe Little Big Ben, which is rated for 50-85 PSI. Yesterday, > it blew two blocks from home, after being topped up with air, ithad been > ridden with no problem for several months since the last blowout. Thought > it might be rim tape, so we actually swapped the whole wheel, since we had > a spare. Still happens. Once, it blew just after inflation, in our hands, > when we were replacing the tube from a prior blow out. I'm thinking it > must be the tire itself, but I don't see anything obvious - Maybe a > slightly rough patch near the bead, but it doesn't seem to have any obvious > pointy bits.... > > Thoughts? > > Nick W. > > > -- 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/d/optout.
