Originally Posted by
jmeb
I think it really varies bike to bike in this era of touring bikes, as there wasn't a single specificied width that all makers spaced their canti posts at. I tried to mount Tektro 720s on my Centurion Pro Tour. By moving spacers around, swapping in thinline pads I almost got it to work but ultimately had no space if the wheel went out of true and had poor lever feel.
I couldn't get tektro 720s to work on my '93 B'stone XO-2. they worked in the rear but not the front. It has a fork crown and the cantis are clearly not as far apart as has become the norm. I ended up using a pair of suntour xc pro cantilevers I had in my parts box. My 1988 stumpjumper with a unicrown fork has no problem with modern cantilevers.