SRAM - What's the point
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Hydraulic rim brakes? Yeah, I can see the point in that, working on the assumption they'll offer better modulation. Sounds like a possibly useful upgrade. Discs, however, can sod off until they absolutely, definitely, 100%, don't drag.Mangeur0
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The hydraulic rim brakes look to be lighter than cable pull units. They will have much more power than cable brakes (ask any Elixir user) and will feel more solid.
I would use them.Boardman Elite SLR 9.2S
Boardman FS Pro0 -
I like how they've been so slow at catching up to the 11-speed game that they've had to call it 22-speed to make it sound new and jazzy!
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Not really putting them down. It is progress after all. Good(and bad) things come out of trial and error. For me, in this case, these brakes would seem to be more of a cure for a problem that doesn't exist.
However, for the poser / showoff crowd these things promise to be quite popular.0 -
I must admit that I can't really see the need at all for hydraulic rim brakes. Maybe it's just me and/or the set up of my bike but it's really not a problem to modulate the brakes properly to maintain maximum braking power without locking up. There doesn't seem to be any other advantages at all other than a claimed improvement in modulation.
The concept of disk brakes on road bikes however I complete buy into and I'd love to be in a position to have them. As someone has said above, they there might be a slight overall weight penalty (although my understanding from the colnago C59 version is that this is actually minimal), but the fact that in theory you are able to have much lighter wheel rims / rotational weight should make a significant difference, let alone not having to replace expensive wheel sets because the brake track has worn out. The fact that the braking surface is well away form the worst of the wet condition is also a massive benefit.0 -
rich164h wrote:..
.... someone has said above, they there might be a slight overall weight penalty (although my understanding from the colnago C59 version is that this is actually minimal), but the fact that in theory you are able to have much lighter wheel rims / rotational weight should make a significant difference....
http://www.bikeradar.com/gear/category/ ... pers-47179
Weight: 463g heavier than Red 22 mechanical
Hydraulic disc systems add weight. For the Red 22 Hydro R discs, it comes to an additional 463g over the Red 22 mechanical group when you take into account the rotors and the additional weight of the wheel (using Zipp 303 standard and disc carbon clinchers for comparison). Arguably, the frames could also increase in weight to account for the additional stability required at the fork leg and rear triangle.
What will be interesting is whether this now triggers disc specific rims like on MTBs, specifically carbon rims.
Carbon rims have always seem to have issues with heat build up as well as the rims needing to be designed to withstand being crushed by the brakes.
Maybe we'll see more carbon clinchers on the market or carbon being generally used more in the same way carbon has become mainstream for frame design.Simon0 -
I think that's where the advantages could be, different rim profiles and less material as the won't have to be as resistant to heat or strong where the brake track would be. Some of the added weight of the disk could be lost in the rim area which means less rotating weight.0
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While I do agree with you, you could easily find more gullible people - they are called hifi buffs.♠ChumBucket♠ wrote:I agree with your remarks on "marketing". I can't think of a better bowl of "victims" for the marketeers- there seems no end to the gullible in the cycling circles!!!!!
Have a look at this http://www.highendcable.co.uk/Nordost%2 ... onnect.htm. Here you can be privileged to buy two short wires for £13,000 - yes, you read that right. Thirteen thousand pounds for two one metre long cables. If you're a bit hard up, you can save £1,500 by going for the 60cm version at the bargain price of £11,500.
High end hifi is both preposterously expensive and also complete snake oil. I have known a couple of these people and they are completely bonkers, spending the sort of money that would buy you a nice house on a few bits of audio equipment for their home. Needless to say, neither of them really knew much about music.0 -
lotus49 wrote:
While I do agree with you, you could easily find more gullible people - they are called hifi buffs.♠ChumBucket♠ wrote:I agree with your remarks on "marketing". I can't think of a better bowl of "victims" for the marketeers- there seems no end to the gullible in the cycling circles!!!!!
Hold on a second now. As I recall the "Most Gullible People" award has gone to Triathletes for something like 10 years in a row now.
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chrispsmith83 wrote:Call me an old traditionalist, but does anyone see the point in these hydraulic breaks? Should I be worried that with all these electro gismos and hydraulics are taking away the pure essence and pleasure of riding a bike. I could be talking nonsense here but will we all look back in years to come when we are on our bikes that have ABS brakes and airbags and wonder this is where is all went wrong?
Discuss...
Believe it or not there is a bike that has an airbag. Its not exactly light tho, it weighs over 300kg.0 -
JamesEs wrote:keef66 wrote:I think disc brakes make sense in cyclo-cross and for commuting in the winter because of the water / filth which makes rim brakes ineffective and wears out the rims. Not sure for road racing
Because road bikes are never ridden when it's raining?
Some are, some are not. My posh bike never needs to go out in the rain because my No2 bike can cover for those times. And of course, many bikes owned by folk towards southern Europe will hardly get wet either.Faster than a tent.......0 -
Perhaps should have said 'because road races never happen when it's raining'?0
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The fact that people (Ok, it's only roadies) feel the need to have a bike for wet weather kind of blows all these comments about "the old stuff is fine" out of the water. If it can't handle a bit of rain, then clearly it is not fine
(I know it actually is fine and that "summer bikes" are a transparent excuse just to buy a new bike, but....)We're in danger of confusing passion with incompetence
- @ddraver0 -
I want the smooth feeling and modulation of hydraulic brakes. I got it on MTB, I want it on RB!2015 Trek Domane 4.5 Disc
http://chup.info/c/tag/trek/0 -
The r&d guys have to do something to earn their money right? And we need to keep being given reasons to spend money. Whether we need it I don't think has been the point for a while
I can see the logic in disc's, I can have a ultra light, stiff carbon rim that will still stop if it rains and won't melt if I try to brake on a hill. That has an appeal. The modulation and feel hydraulic brakes would bring also have an appeal.
Having said that I've never really felt my DA7900 stoppers are missing much. We should applaud SRAM for innovation, things would get very dull without it.0 -
Has anybody on this forum actually suffered from brake fade on a descent due to overheating rims, or a blown tube for that matter? I certainly haven't, nor do I know anybody that has, maybe just lucky I guess. Given the type of descents you get in this country a pair of Swiss Stop pads seem sufficient.
The hydraulic rim brakes I do like, but purely from an aesthetic point of view I think discs on a road bike detract from the look of the machine.“Faster, Faster, until the thrill of speed overcomes the fear of death.” Hunter S Thompson0 -
Cheshire Cat wrote:Has anybody on this forum actually suffered from brake fade on a descent due to overheating rims, or a blown tube for that matter? I certainly haven't, nor do I know anybody that has, maybe just lucky I guess. Given the type of descents you get in this country a pair of Swiss Stop pads seem sufficient.
For more than a few years I rode The Bicycle Tour of Colorado, in all sorts of weather, with Mavic ceramic coated rims and the special pads that were required and DA 7800 brakes, all without incident They handled it all, from steep, wet, and long descents to any other place I needed them.0 -
ddraver wrote:Handled well with total control or just managed?
Handled well, as far as I was concerned. What could I have compared it to? Other than plain rims and regular brakes?
I think the ceramic rims and pads stopped a bit better in the wet, but either standard or ceramic brakes are very capable of locking up a wheel, even in the wet.
I don't see how hydraulic rim brakes present a major, or even minor improvement, over standard rim brakes. It all boils down to pads against a rim, any way you do it. I think that's what needs work, if anything, rim and pads and not the delivery system particularly.0 -
Compare it to disk brakes...
The rim brakes i agree are less beneficial, the advantages (and I know you struggle to take in information off here, but please try this time) are the better modulation and the lack of maintainance needed. Now how much that is worth to an individual is obviously personal, but if you have a groupset higher than say 105 or its equivalent then your paying significantly more for something that performs maybe 1% better. Why wouldnt you then do the same for the brakes? MTbers all had the exact same response to disks when they appeared there too. Now you'd be hard pushed to find a (proper) bike anywhere without them.
However, the make or brake (sic) will be if the UCI sanction them for road use, and they get used because if we re honest, 99% of us ride whatever the pro's ride regardless of it is suits us, fits well is comfortable or whathavyou. See the obsession with slamming stems as an example...We're in danger of confusing passion with incompetence
- @ddraver0
