Mine fit pretty loose on speedway 70s but i havent had any issues while riding. I am using surly tubes and i found the best way to mount them is to put enough air in the tube that it helps the tire hold its shape on the rim and then carefully center the bead on the rim on both sides as you start to inflate the tire.At about 20-25 psi the bead seats but it doesnt (pop) on like a smaller tire would.J-No said:Why am I having problems? I overinflate them to try to get the bead to pop out, but it is a still a problem. Not something I want to deal with on the trail.
The tire is pretty loose on the rim (Speedway 70's). Is this normal? At low pressures I had problems with the bead slipping off. I was using some narrower tubes. I switched to the Surly's as they just came in and will check it out.