wow 2.2? while I would agree 2.55 is a bit of a stretch I am running them on a pretty narrow rim (23.5mm) and they are about 2.3 to 2.35's- larger than a 2.25 Ardent, 2.4 MK, and about the same size as Stout 2.3 and 2.3 Rampage on the same wheels- Give it the old too much pressure for a few days and see if it "grows"?sevenboarder said:I ordered the Weiwolf a couple weeks ago off price-point for cheap. I was pretty pumped to have a FAT tire for pushing through snow. I was a little disappointed when I got it, and at it's absolute widest, it maybe measures 2.2". It's still a great tire and I like it, they just need to learn how to measure at WTB... and yea, I'm sure it'll fit your way better bike than mine!