I have 26 X 1.5 inch tires on my bike. However, when plugging in my wheel/ tire size for my new cycle computer, I saw that my options included 26", 26.4", 26.5", 26.6" and maybe some others. The 26.6" size was in boldprint, so I guessed that was sort of the standard size and plugged that in. Readings don't seem to be outrageous or anything, but I want to make sure. I just bought one of the tires, but its label just had 26", nothing more. I know 26.5" said tubular next to it and I don't have that. The others had something like 700 times some number CC. Nothing on my tire package had any of that. Any help?