The reply from Michael (below) is a very good idea. I have owned a bicycle
store for over 30 years. And have had to his suggestion quite often.
Almost always with 700C tires.


"Michael" wrote in message
...
Check and make sure you didn't put too much air in the tube to hold it in
place while mounting the tire. I had a similar problem last Sunday.
After
I got the first side of the tire on the rim, I had to let most of the air
out of the tube and was finally able to get the rest of it on.