As long as they have decent seals, I don't see why they wouldn't do just fine. Shimano is good about having quality stuff for basically any of their middle tier and above. I do use XT/dynamo hubs on my touring bikes, but the 10sp derailers on my most recent touring are Ultegra. I used them on a tour on some pretty gnarly gravel and have done plenty of commuting and rail trail miles on them with no problems at all.
Originally Posted by
Rick
My custom touring bicycle came with significantly better price/quality ratio disk brake calipers. They and two other caliper sets did not make me happy. I purchased Paul Klampers and they do what brakes are supposed to do.
*shrug* I've had BB7s on mountain bikes and my touring bike and they'll lock the front wheel on pavement. They modulate well. I've never had a problem with a single caliper after Many miles. Like with any brake, you do need decent pads. Throw on some quality organic pads and you're good to go.