I had the same problem with 650b Marathons on Synergies. Could NOT keep them seated. Had one blow off of the rim a couple of times just sitting in the garage. Thought I had them seated, then on a ride one tire blew off repeatedly. When I got home I found the bead must have rubbed on a brake pad during one of the moving blow-offs, and worn some of the rubber down to the steel cord. Trashed that tire, removed the other and have never mounted it again.
Not to blame Schwalbe entirely, some of the early 650b Synergies were made undersized. Every tire I have tried fits loosely on those wheels, it's just that only the Marathons actually blew off. I have since built a new set of wheels with Dyads and they are a bit better fit. Maybe they cut some 700's short as well? Bill Stockton, CA On Saturday, May 19, 2012 6:35:18 PM UTC-7, rw1911 wrote: > > I don't think it's me, maybe it is, but these are the most difficult > tires I have ever dealt with. Normally when I think of tires being > difficult to mount, they're really tight and require multiple levers > and a lot of force to get on. > > My problem is the opposite. These things are so loose that it's a 15 > minute procedure of getting the tire on the rim, a little air, check/ > seat the bead, a little more air, repeat, repeat. So the tire is now > mounted and the bead looks evenly seated all around. I cruise down > the driveway and back up through the yard. Bang! the tire blows. > > It's obvious the bead popped out and pinched the tube. I think OK, > I'll just throw in a new tube. Checking, airing, checking, airing. > The bead let's go at about 50 PSI and I just lost another tube, my > last spare and the local shops are closed tomorrow. I'm more than a > bit agitated/bummed. > > Apologies for the long rant to get to this point... Has anyone else > experienced such difficulties with these tires? 35c Marathon Racer's > on Velocity Synergy rims. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/G65dQz-Jhq8J. 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.
