Originally Posted by
3alarmer
....the 700c rim ought to give you room for a little fatter tyre in the frame, too
Another good point. When I went to 700c wheels on my '83 Trek 400 I was able to fit 700-25 tires with fenders. There was no way the fenders would have fit with the 27" wheels. Larger tires would also have fit if I hadn't had the fenders.