It seems I've developed a bit of a specialty as the reluctant "early" adopter of disc brakes. A few years ago, I took the bullet when we first tested the HOT BUNS. More recently, I've been seen on the Timoneria Disc. While a lot of people out there in the wide, wide world of sports have their own HOT BUNS, and a handful will very soon have their own Timoneria (which, I assert, is the plural of Timoneria), I have the as-yet only disc version of each. Check me out.
Brief aside here, many of you are probably asking just what the hell is a Timoneria, and have Mike and I completely lost it and gone into that ersatz cycling "homeland" naming convention that we used to hate so bad? No, and we still hate that crap just as bad. The Timoneria, in name, concept, and execution, is the Italian version of the Wheelhouse. "Timoneria" is the Italian word for the cabin aboard a sailing ship or yacht from which the craft is steered - quite literally, the Wheelhouse. Again, check me out.
So now I've got about 250 miles on the beast, and I've developed a few impressions. At first, to someone who's spent his last, what, 25,000 road miles on a Wheelhouse, it's familiar. It's got some palpable differences, all to the good, but I'd like to focus on the brakes for a start.
While I've ridden disc brakes probably a great deal more than most in general, that has been primarily on mountain and cross bikes. I love my mtb's hydro brakes dearly, but my relationship with the mechanicals on my cx bike hasn't been as wunderbar. Whether road disc gave an experience more like the mtb or the cx bike would tell the tale.
The whole thing adds just shy of a pound against an equivalently spec'd rim brake bike, and we've previously explored the aerodynamic ramifications for the deal. How those affect the general mood in your household is for you to determine, we just give you the honest dope on what the numbers say.
To the riding... well, they certainly work very, very well. I've not ridden them among a group, but to me the whole prospect of danger in mixed company is a non-story. When you ride with a group, you ride as part of the group, and there's nothing to discs that would prevent that. In riding alone, it took a couple of rides before I did start to notice my braking habits starting to change. The ability to brake in excess of your traction is right there. If you think rim brakes are easy to skid, you ain't seen nothing yet. The net of this is that you brake not with what your brakes can do in mind, but what your tires can do. Yes, you can brake later, for sure. And sometimes, that means you get to the point where you thought you were going to need to, and instead you see that you really didn't need to brake after all and so you don't. That's the most striking thing to me so far - I actually half expect to get better through turns just by learning that I was actually braking too much before.
Operationally, they're tight. Rotor rub was easy to get rid of and hasn't been in an issue since about minute six of my life with road discs. There's an interesting issue where I actually think an overly-stiff front wheel will turn bad, but that's a story for another day. There's been no noise, despite a couple of rides being in damp conditions, and in general noise is super easy to manage. I'll send you the link that explains it.
One thing I was concerned about was shifting performance on a 135mm dropout spread with a 405mm chain stay. Shimano straight ahead says 415 should be the minimum chain stay length. Good thing I used Force for this build, because you can cross chain your face off on my setup. It shifts perfectly.
These are preliminary thoughts. Later in the month I'll be in Tucson (haha!) and will get to do some big ass descents and put some more stress on things but for now I'll say that it's far from a life changing thing that I could never again be without, but they're certainly nice and work quite well. And, I almost forgot, those big honking shifters are actually super comfortable.