You think rim brake, direct mount will return?
#126
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Aside from the unused brake interface, there's the small matter of unnecessary dish on the front, and oversized rear OLD. When I pictured a bike with direct mount brakes and through axles, I saw something sleek and cool, not something I'd point and laugh at.
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#127
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A friend of mine bought a Domane SL7 with ultegra hydraulic disks at the beginning of the season and they have squealed annoyingly every time he stops on every ride since the first time I rode with him in February. If it were my bike, I'd fiddle with it until it was quiet.
#128
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I had similar thought about my car - the BOV could vent to atmo if I pulled up on the reverse lockout during a shift. I know, what could possibly go wrong, right?
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#129
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A friend of mine bought a Domane SL7 with ultegra hydraulic disks at the beginning of the season and they have squealed annoyingly every time he stops on every ride since the first time I rode with him in February. If it were my bike, I'd fiddle with it until it was quiet. I guess if people don't care if they have loud brakes, they don't take any maintenance. I know he hasn't done anything to his. He said he took it to the shop and they told him that's just how they are. They stop fine. They're just loud.
#130
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Come on, it's a thing with bike discs, and not really a thing with proper rim brakes unlike on your mum's hybrid.
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#131
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The brakes on my cars are quiet. My BB7s squeal incessantly which is the main reason I hate them. Given my personal experiences I'm skeptical that hydraulics are all that much better in that regard.
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#133
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Cheaper cable disc brakes may be more prone to squealing, probably due to slop in the piston. A worthwhile upgrade would probably be the TRP hybrid calipers, which will also drastically reduce the amount of fiddling necessary to keep them working nicely.
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#134
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IME they only squeal if they get contaminated or something is loose. Resin pads are normally silent. Sintered pads can be a little noisy in certain conditions. Can’t say noisy disc brakes have been an issue for me on either mtb or road. I’ve been really impressed with the Shimano road discs. Can’t fault them really.
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I don’t have much experience with BB7s, but most decent hydraulic brakes don’t squeal incessantly. I ride with loads of people using disc brakes and they are not all squealing. IRL I haven’t come across anyone complaining about their disc brakes. It seems to be an internet only thing. Noisy drivetrains on the other hand seem pretty common.
#137
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My solution has been to stick to rim brakes in the rain. It's the road grime that contaminates the pads and makes the disks squeal in my experience. They're fine if I keep them dry. As I said, I'm skeptical that the pad contamination problem is solved with a different caliper.
#138
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The internet and seven-time grand tour winner Chris Froome who is paid to ride a bike with disk brakes and has a team of mechanics who still can't keep them from rubbing and squealing. That's it. Just those two.
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Many car disc brakes have a squeaker built in.
Silent until you get down to about 1/8", then they start squealing.
Silent until you get down to about 1/8", then they start squealing.
#140
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Most cable calipers aren't double acting, which flexes the rotor onto one set of pads, which sucks mainly because it drastically reduces pad life (the pad rapidly wears where it touches first, until it conforms, at which point the thinnest part of the pad could be half gone), but also because that sort of nominal near-enoughery is what adds up to make stuff work badly.
The hybrid calipers, aside from being double acting and providing the significant benefit of self-adjustment, are going to work better also because they're necessarily made to tighter tolerance.
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Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
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Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
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#142
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Disc brakes continue to evolve, but component manufacturers are investing zero into rim brake R & D.
Like 26" wheels, coaster brakes, and quill stems, rim brakes will be around forever. But their current iteration is about as advanced as they'll get, and that will seal their fate.
Like 26" wheels, coaster brakes, and quill stems, rim brakes will be around forever. But their current iteration is about as advanced as they'll get, and that will seal their fate.
#143
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#144
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Disc brakes continue to evolve, but component manufacturers are investing zero into rim brake R & D.
Like 26" wheels, coaster brakes, and quill stems, rim brakes will be around forever. But their current iteration is about as advanced as they'll get, and that will seal their fate.
Like 26" wheels, coaster brakes, and quill stems, rim brakes will be around forever. But their current iteration is about as advanced as they'll get, and that will seal their fate.
The fundamental advantage of rim brakes that tempts a designer away from disc, is that the difference the brake makes from a track frame is stuff-all: the fork legs in particular can be stiff or compliant in all the places and directions desired to fulfil the gamut of criteria for a top-notch fork. This is why I pine for my unicorn, rim brake / through-axle - it's about flex where you want it and none where you don't.
Traditional QR axles made sense BITD, but now that we only use steel for stuff like bearings and fasteners, cables and drivetrain, the dimensions are wrong, like HG splines in aluminium.
Anyway, rim brakes are highly evolved; it's a bit unfair to mention them in the same breath as '26" wheels, coaster brakes, and quill stems'...
So there's one vote for increased verbosity in my posts
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Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
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Sheldon Brown's bike info ~~~ Park Tools repair help
Half-step triple, using double gear ~~~ 6400 STI rebuild walkthrough ~~~ Want 8/9/10s @126mm OLD? OCR. ~~~ Shimano cassette body overhaul ~~~ Ergopower Escape wear repair ~~~ PSA: drivetrain wear
List of US/Canada bike co-ops ~~~ Global list
Last edited by Kimmo; 07-17-21 at 08:58 PM.
#145
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#146
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Yes, but my point was that their evolution has peaked, and little if anything is being done to make them competitive in the market. In that respect, I maintain that the comparison is apt.
#147
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Who else in the pro peleton is complaining about disc brakes?
#148
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I have no idea. I'm just some middle-aged white guy from the suburbs. Froome is the only one I've seen publicly complain about it recently. There were a lot a few years ago when the transition was just getting started. Apparently someone on team Israel forgot to tell Froome to keep his opinions about disks to himself after coming from Ineos who still ride rim brake Pinarellos. I notice the issue has since been corrected.
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#149
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Still see stories along these lines crop up every year or so.
https://www.cyclingnews.com/news/mat...an-rim-brakes/
https://www.cyclingnews.com/news/mat...an-rim-brakes/
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Disc brakes continue to evolve, but component manufacturers are investing zero into rim brake R & D.
Like 26" wheels, coaster brakes, and quill stems, rim brakes will be around forever. But their current iteration is about as advanced as they'll get, and that will seal their fate.
Like 26" wheels, coaster brakes, and quill stems, rim brakes will be around forever. But their current iteration is about as advanced as they'll get, and that will seal their fate.