Join Date: Jul 2008
Location: Grid Reference, SK
Bikes: I never learned to ride a bike. It is my deepest shame.
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Originally Posted by Kayce
There is no measurement any where on your wheel or on any 700 tire that is 700 anything, in any system And more than likely there is no measurement on that tire that is 23 anything.
You are right, except for being wrong.
THe '700' used to refer to the nominal outside diameter, in mm, of the wheel with the standard width tire installed. Although there is no 'standard' width for 700C tires anymore, so
THe '23' refers to the nominal width of the casing of the tire, in mm, when mounted on a rim.
The 'C' is present because there used to be 700 'A' 'B' 'C' and 'D,' which all had different rim diameters intended for use with specific tires to give an outside diameter of ~700mm.