So I'm trying to get back into cycling, and my fiance wanted to do it with me. She has a Trek Navigator 200 hybrid. The tires are dry-rotted and we wanted to put something skinnier and smoother on there.
So, I looked up her wheel which is a 559x20, and read that I could put a 26x1 1/4-1 3/8 inch tire on there. So I bought two tires and matching tubes.
Well, the tires wont fit. I started with the tube inflated a little bit, but I couldn't get it going. I tried just the tire and with it beaded it looks like it's substantially too big. Double checked the tire to make sure it was the correct one and it is.
What am I missing here?