Originally Posted by
Medic Zero
The reason disc brakes are showing up on touring bikes is people are convinced new is better and that they need more stopping power, i.e. the companies are looking to sell you an upgrade you don't need. Disc brakes are over rated, I've never wanted for stopping power with decent cantilevers that are dialed in right, and I'm a big Clyde who can't pack lightly to save his life. Even on an heavily loaded bike while touring, descending, I've got enough braking power. Disc brakes on tourers is adding a weight penalty for no real benefit.
Breaking a spoke on a disc wheel vs rim brake wheel is another advantage, no need to stop and adjust other spokes to get the wheel from rubbing on the brake pads. If I hadn't heard the ping of my spoke breaking, I would not have even noticed. Kept on riding until I got to the shop and had it repaired.