This brings up something I've wondered about for years; how did 622mm tires ever get misnamed "28"?" I've noticed that this is peculiar to French tires; at least my only sightings have been on Michelin and Hutchinson products. Anybody know?
David Feldman
>
> This clears things up for me...I'm in Toronto and almost all the roadsters
I
> encounter are the 28 1 1/2 Canadian size. And they do take the 622 mm
bead.
> Makes tire selection easier although not always period.
>
>
> Warren Young
>
> Mike B wrote
>
> The English 28x11/2" tires are completely different to the 700C tires that
> were recommended. The bead seat diameter is 635mm whereas the 700C is
> 622mm. There is much confusion in Canada as there were many English bikes
> with the 635s sold here and there were many Canadian built bikes which had
> 622s which were also marked 28x11/2". The latter are known as Canadian
> 28s. We have both sizes in stock in both black and white. The white ones
> really dress up those vintage bikes.