Originally Posted by
bradtx
As far as pure braking power there's no reason why DP calipers aren't a good choice. A loaded tourer can weigh 80 lbs. more than a roadie with the same rider and having the brake arms mounted on two brazed on studs (or a rotor on a hub) are more up to the day in and day out tasks than the single bolt of a caliper brake.
Brad
Grand Bois, calipers can stop a 300 lb guy on a 65cm bike, and offer a good, positive contact on the rim. If you're not into loaded touring, they'll get the job done, but if you get more than say 40 pounds of cargo weight, then I'd rather have the cantilevers. They are harder to set up and maintain in contact with the rim, but offer enhanced braking ability and the ability to toe out the brake pads without bending anything.