Russ wrote:
> Can someone help me out please on tyre dimensions. What does 700c mean?
>
> Easy question...
...but not such an easy answer. It's a long story, but it means that the rim diameter is the same as
for the old imperial measurement 28" x 1-3/4" tyre. When the French designated their own tyre sizes,
they used a nominal conversoion rate of 25mm = 1 inch. So the 700 means 700 pseudo-milimetres and
isn't a real measurement at all.
There's a much longer explanation at
http://www.users.globalnet.co.uk/~pattle/nacc/arc0307.htm but
beware, thinking too much about tyre sizes can make your brain explode.
> but thanks all the same
's OK
--
Andrew Pattle