"Originally Posted by Pompiere
I don't recall any issues mounting 25 mm Ultra Sports, but I have a pair of 28 mm Hutchinson Nitro tires that have been nearly impossible on every rim I tried. I am afraid to use them on the road, lest I might need to fix a flat."
Originally Posted by
Lascauxcaveman
Those things are
hard and tight. Cheap, too. Not a supple tire at any presure. I bought a half dozen at something like $3.75/ea at a year end blowout. So far I have only managed to mount them on one set of rims
I got some Nitro's at the same sale. Very difficult to mount, but persistence and a 3rd lever worked for me. They also required much care ensuring the bead remained seated during 1st inflation. Slow inflation + weight on the tire + rolling back & forth. Noticed the harsh ride at 1st but with use, mine seemed to get more flexible over the Summer and ride got smoother. Later when I moved them to another set of wheels, they were easy to get off/on. Don