I recently bought a cheap front mini rack on eBay, and attempted to mount it today. I took the cantilever brakes off(Dia Compe 986 on my '93 Bridgestone XO-2). Turns out the holes on the rack struts are too small to fit over the cantilever posts, so I'm going to have to borrow a drill and ream them out. I put the cantilevers back on and now they're way out of adjustment and are rubbing. Sheldon Brown covered this brake a bit on his website, but the instructions aren't clear. Anyone know a good online walkthrough on Dia Compe cantilevers?