I put a pair on some standard 26 inch wheels and they were so tight that I pinched the rear tube putting them on. When I tried to remove the tire to repair the flat, I could not get it off. I feel like if I tried any harder, I might damage the rim. So I had to cut them off. (previously used tires, so minimal financial loss). I thought it was just me and/or my wheels, but when i got to work the next day (bicycle collective) I talked to a fellow employee who had similar stories.