Originally Posted by
highhung723
You're right. The Raleigh has 27" x 1 1/4". I'm guessing 27" tires are for older bikes and 700c are for newer? In that case, the KHS is probably newer?
^ Affirmative.
(The exception is for wheels that take tubular (sew-up and glued-on) tires, which have been nominally-sized to 700 forever. Most bikes take clincher tires though (with a separate inner tube).