Originally Posted by
posinihilist
So I'm trying to run a 32c Vittoria Randonneur on a 27mm wide 29er disc rim. I've got one of those beefy thorn-resistant tubes in it. There's a couple spots when I inflated that don't seem to be clinching. Could it be that the tire is too narrow? Is my rim tape too narrow? I've got a 17mm rim tape that only covers the spoke hole area of the rim rather than going from sidewall-to-sidewall. Will it expand and clinch if I just ride on it? What do you guys think?
Could be the thorn resistent tube is to bulky and preventing the seating of the tire. Try baby powder around the tube and it may slip into place. If that doesn't work make sure valve is pushed in a little when you start to pump tube so it allows tire to seat. If none of that does it , then it must be the tube, to bulky