Originally Posted by
engineerbob
It has 27" wheels. I just ordered a set of 27 x 1 1/4 tires.
Some have converted older 27 inch frames to 700c wheels by putting on longer reach sidepull brakes. Not sure if that is practical modification with cantilevers, but if it was me I would try to figure out if that is a viable option. The wider variety of 700c tires is a pretty strong justification. Used wheel sets with 126mm dropout spacing can be had for a pretty good price too, last winter I got a very nice set of wheels at a swap meet for a very good price.