SRAM news brewing...

Discuss light weight issues concerning road bikes & parts.
durkonion
Posts: 188
Joined: Sat Dec 22, 2007 4:17 am

by durkonion

The old FD wasn't 58g. It was actually around 70-71g. So it's only gaining 3-4g.

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

robsc wrote:Doesn't the current fd run from limit screw to limit screw ? Why would there be any difference ?


if the shifter pulls 7mm of cable MAX, and the front derailleur requires 6mm of cable pull to move the cage from one gear to another, the limit screws do their job.
if the front derailleur requires 8mm or cable pull to move the cage, then the high limit screw never comes into play. the cage will not move far enough.

by Weenie


robsc
Posts: 62
Joined: Mon Sep 26, 2011 1:40 pm
Location: Port Elizabeth , South Africa

by robsc

True , thisisatest . I dont think that the new fd even requires as much "pull" as the old one due to the "yaw" feature . Anyway time will tell , as soon as somebody can get one to test it .
Scott Addict (7,19kg) (15,8lbs)

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euan
Posts: 1487
Joined: Sat Sep 05, 2009 11:20 am

by euan

"Step forward the climber and all those who worship at the altar of lightness" - R. Millar

RichTheRoadie
Tinker, Taylor, Tart
Posts: 1991
Joined: Sat Nov 29, 2008 8:00 pm
Location: Sydney, Aus.

by RichTheRoadie

Those new hydraulic levers look super comfy, and the brakes are nice and clean-looking too.

I'd run them for those reasons alone...! :lol:

jsinclair
Posts: 396
Joined: Sat Aug 27, 2011 3:26 am
Location: Sydney, Australia

by jsinclair

Rich-Ti wrote:Those new hydraulic levers look super comfy...


And somewhat comical...

KWalker
Posts: 5837
Joined: Mon Dec 28, 2009 8:30 pm
Location: Bay Area

by KWalker

Who honestly needs that big of a handhold?

Do the lever blades look kinda small to anyone else?
Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

kevinkalis
Posts: 597
Joined: Tue Aug 03, 2010 6:29 pm

by kevinkalis

Is there actually any benefit to having hydraulic rim brakes?
K2

Do you suffer more when you train, or cannot train?


KWalker
Posts: 5837
Joined: Mon Dec 28, 2009 8:30 pm
Location: Bay Area

by KWalker

kevinkalis wrote:Is there actually any benefit to having hydraulic rim brakes?

Having people convert to hydraulic while wheel/hub manufacturers create disc compatible road hubs that they can successfully market and build into stock wheelsets.
Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

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Frankie - B
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Joined: Mon Jun 02, 2003 8:17 am
Location: Drenthe, Holland

by Frankie - B

kevinkalis wrote:Is there actually any benefit to having hydraulic rim brakes?


Time trial Frames and the current trend in aero road frames.
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

kevinkalis
Posts: 597
Joined: Tue Aug 03, 2010 6:29 pm

by kevinkalis

KWalker wrote:
kevinkalis wrote:Is there actually any benefit to having hydraulic rim brakes?

Having people convert to hydraulic while wheel/hub manufacturers create disc compatible road hubs that they can successfully market and build into stock wheelsets.


Sorry, I'll rephrase. Any performance benefits to hydraulic rim brakes? In other words, any reason for me to drop a lot of money on something that won't make me any better/faster/safer.
K2

Do you suffer more when you train, or cannot train?

KWalker
Posts: 5837
Joined: Mon Dec 28, 2009 8:30 pm
Location: Bay Area

by KWalker

I can see them having more stopping power and precise modulation in adverse conditions and on carbon wheels.
Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

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astranoc
Posts: 458
Joined: Sat Jun 26, 2010 11:43 am

by astranoc

Do you really need more stopping power? You can argue about modulation, but it comes down to pads so much that I am not sure how different it will be.

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Frankie - B
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Location: Drenthe, Holland

by Frankie - B

Hydrolic rim brakes will give more stopping power when used in TT or aero road frames. Those frames usually make cables go in strange angles and create high friction inside the cables. This gives traditional cable pulled brakes less stopping power. A hydro powered brake should solve this.
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

by Weenie


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