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Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 8:25 am
by Stormtrooper
Newer version of stages is sleeker so no more compatibility issues. I think.

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 8:31 am
by mattr
Stormtrooper wrote:I can't even count how many times my standard da brakes shifted off center on my old bike
They never shifted so it wasn't worth counting, or they always shifted so you ran out of numbers?

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 8:31 am
by Weenie

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 8:41 am
by Stormtrooper
They shifted more than I would have liked. If I had to choose between standard or direct mount, I'd choose direct mount every time. Dm are lighter, sleeker, stop better, can fit bigger tires if needed.

I just don't get the hate.

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 8:49 am
by Stormtrooper
Didn't Matt hayman win Paris Roubaix on a Scott foil which had bb dm brake? Enuff said.
I wonder if he had any problems with dirt getting in his brakes or wheel rub when he outsprinted tom boonen.

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 8:54 am
by PureSek
Stormtrooper wrote:Didn't Matt hayman win Paris Roubaix on a Scott foil which had bb dm brake? Enuff said.
I wonder if he had any problems with dirt getting in his brakes or wheel rub when he outsprinted tom boonen.

He's also got a mechanic who is responsible for its bike cleanness and functionality for each of his race afterall, so its hard to say when it comes to daily uses of non-pro riders.

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 9:08 am
by Nefarious86
With the amount of clapped out not maintained high end gear I've seen its no wonder spme people struggle....

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 10:02 am
by mattr
Stormtrooper wrote:They shifted more than I would have liked.
Weird. I have to recentre a caliper about once a year, if that. That's running eight or nine bikes with conventional rim brakes. And regular wheel removals/car boot transport.

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 10:58 am
by corky
Note that Colnago C60 and DeRosa Protos have their direct mount brake locations in the regular position i.e. Seatstay mounted.

I think the pros don't like the chainstay mounted brake location as it is more obvious that their car mounted mechanics cannot 'adjust the rear brake' / assist the tired rider with a sneaky tow.

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 12:27 pm
by eric01
The other thread with spy shots of the new BMC team machine looks to have direct mount brakes. So... some love from BMC

Re: Why no love for direct mount rim brake?

Posted: Tue Apr 18, 2017 5:57 pm
by pdlpsher1
Stormtrooper wrote:I just don't get the hate.


The haters are those who aren't using DM brakes. It's human nature to discuss how much they don't like anything they don't have, thus convincing themselves that they have made the right decision :D

Re: Why no love for direct mount rim brake?

Posted: Thu Apr 20, 2017 3:23 pm
by fromtrektocolnago
The reduced clearance issue is a bigger deal than most realize. More than a few times a year I get caught in the rain or have to ride a portion of a ride in gravel or a gritty street.

Re: Why no love for direct mount rim brake?

Posted: Thu Apr 20, 2017 4:32 pm
by Mr.Gib
Stormtrooper wrote: I can't even count how many times my standard da brakes shifted off center on my old bike.


Simple solution to this. When you cable brakes, do so with the brake fixing bolt loose. Set the cable length so the brake caliper is held perfectly centered before the brake fixing bolt is tightened. On most setups you can get the front brake near perfect, rear brakes are trickier but you can get close on many bikes.

Re: Why no love for direct mount rim brake?

Posted: Thu Apr 20, 2017 5:15 pm
by Zakalwe
Never once have I had to centre a dual pivot Campag brake; the rear single pivot once, but then I tightened the bolt a little more and never had to again.

Re: Why no love for direct mount rim brake?

Posted: Thu Apr 20, 2017 5:22 pm
by fromtrektocolnago
Never had to center my Dura Ace or Ultegra brakes either. Must be SRAM :)

Re: Why no love for direct mount rim brake?

Posted: Thu Apr 20, 2017 5:22 pm
by Weenie

Re: Why no love for direct mount rim brake?

Posted: Thu Apr 20, 2017 6:03 pm
by ichobi
Normal brakes have plenty of power. That's never a question, just not the modulation of DM brakes. You guys really have to try direct mount dura-ace. The modulation is pretty amazing, rivaling many disc system.

Aero arguments for putting brakes under bb is pretty much bollox according to a lot of engineers. Cervelo being one, that's why they don't put brakes under the bb, still comes out with the fastest bike in the bunch.

Having read all the comments, few reasons why manufacturers won't put DM on their bike (standard position not under bb shenanigan)

- Disc brakes are the $$$ why develop new frames just to have dm brakes when you can put r&d into making a better disc brake bikes.
- DM brakes are not standard-issue parts. Hard to find, upgrade, and replace (in some region at least). Hassle for buyers. (That's why Canyon aeroad frameset come equipped with brakes installed.)
- Standard brakes work well enough, as commented here.

Still, during the disc brake era gap, would be nice to have a few new bikes aero or all-round coming out with direct mount option for those of us who prefer rim brake bike.