I've been trying to adjust the cantilever brakes, but due to the fact that they don't have the small adjustment screws at the bottom like most do, it's been somewhat impossible. I ordered a set of Shimano BR-CT91 cantilevers and installed this evening. The screws allowed me to adjust them perfectly. The original brake levers on the handlebars had broken pieces so I've ordered a new set of Avid Speed Dials, which should arrive tomorrow.