Join Date: Jul 2003
Location: Norfolk, England
Bikes: Orbea Enol roadie, Fly Micromachine BMX, Fort Track fixed
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by Gonzo Bob
A 700C has a 622mm bead diameter and a 27" has a 630mm bead diameter.
A 27" frame can definately take the smaller 700cs, going up to 27" on a 700c frame would depend on the frame (close-clearance racing frames - probably not; relaxed touring/hybrid frames - possibly). But why would you want to? I'm assuming you want to put 700cs on a 27" frame?
I think 700c refers to the nominal tyre diameter of 700mm (650c has 650mm tyre diameter). I'm not sure what the letter refers to (there's also 700b).