I am thinking of building a Pashley style bike and had a question. I see that many of the cream tires that guys are using are the 700 c size tires. Is that the same as a 28" or close to it? Can you use a 700 or 28" on a standard 26 inch frame without fenders? For example, if I was to get a two speed kick back installed on a 28" rim would in work on some old Schwinn or Raleigh frame? I am not to up on lightweight bikes. The tires on bikes like Pashley Guv'nors seem fatter than a standard tire. Thanks for any advice. Brian