Originally Posted by
mawtangent
Hello...I'm not sure what you mean by "they are so wide they can wrap around my rims"...I have a Marathon Plus in 700 X 25, it seems to be accurate (about an inch wide when looking down on it with a tape measure across it). The Marathon Plus tire is notorious for being hard to mount (do a search and you will get a lot of very helpful tips). My first try at mounting mine (10-20 minutes) was a failure. I got frustrated and had to come back later and got the tire on with a second pair of hands (my wife's). I had to dismount and mount the tire a couple of times by myself (once because the stem was crooked). By the third try I could get the tire on by myself in under 5 minutes. I also read that after the tire is mounted for a few weeks it gets a lot easier to mount/dismount. It takes patience and technique to get the tire mounted the first time. (in one thread the poster wrote about using ties to keep the tire in place as they worked it onto the rim).
I have been meaning to lay in a supply of cornstarch especially for mounting new tires. As a dry powder it is very slippery and a great help for that last 1/8 of the circumference of the tire that refuses to go into the rim. I hate when that happens.