700c Tyres (Wheels)?

Another Fred said:

Can someone please enlighten me as to the significance of
the above specification. I've just measured the diameter
of my wheel and tyre and the figure I get is 677mm . So,
what does the 700 refer to ? and what does the c mean ?

Since Sheldon's traveling, I'll provide the link: sheldonbrown.comtireOpen ↗
sizing.html#french

--
James "Hi Sheldon" Scott www.jls.cx

"It keeps amazing me to see how many people would not know
how to feed themselves, if it were not for internet."
-- Sergio Servadio, rec.bicycles.rides

"James Scott" <[email hidden]> wrote in message
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Quoted message said:

Another Fred said:

Can someone please enlighten me as to the significance
of the above specification. I've just measured the
diameter of my wheel and tyre and the figure

I

Quoted message said:

Quoted message said:

get is 677mm . So, what does the 700 refer to ? and what
does the c mean ?

Since Sheldon's traveling, I'll provide the link: sheldonbrown.comtireOpen ↗
sizing.html#french

--
James "Hi Sheldon" Scott www.jls.cx

"It keeps amazing me to see how many people would not know
how to feed themselves, if it were not for internet."
-- Sergio Servadio, rec.bicycles.rides

Thank you very much - extremely helpful! Fred

Another Fred said:

Can someone please enlighten me as to the significance
of the above specification. I've just measured the
diameter of my wheel and tyre and the figure I get is
677mm . So, what does the 700 refer to ? and what does
the c mean ? Designing new road bike and am curious as
to the tyre sizes!

Not much; it's French and refers to the diameter of some
arbitrary tyre mounted on the rims. The critical measurement
is the bead seat diameter (somewhat smaller than the outside
diameter of the rim), which in this case is 622mm. Most
tyres for 700c come in at about 26.4" rolling diameter when
you allow for the squashed bit at the bottom.