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SRAM front der adjustments

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Mike Jacoubowsky

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Oct 23, 2010, 1:18:59 AM10/23/10
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Curious how people here are setting up their SRAM front derailleurs.
Most modern bikes no longer have cable tension adjusters built into the
frame, leaving you with the choice of in-ilne cable adjusters or none at
all. Not using one means trial & error with cable tension using the
derailleur cable fixing bolt, which leads to frayed cables. Fine, so you
use an in-line unit, but the jagwire version that's found on many/most
production bikes doesn't like to hold its adjustment when used with a
SRAM front derailleur (probably because the SRAM front derailleur is run
with zero cable tension anytime you're in the small chainring, unlike a
Shimano which, if trimmed, has some tension on it).

I've studied the photos I've taken at races, and the pros simply aren't
using in-line cable adjusters. What am I missing here? If anything, I've
found SRAM front derailleurs to be more picky, not less, than Shimano.
What are people here doing?

Thanks-

--Mike-- Chain Reaction Bicycles
www.ChainReactionBicycles.com

A. Dumas

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Oct 23, 2010, 7:40:17 AM10/23/10
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Mike Jacoubowsky wrote:
> I've studied the photos I've taken at races, and the pros simply aren't
> using in-line cable adjusters. What am I missing here? If anything, I've
> found SRAM front derailleurs to be more picky, not less, than Shimano.
> What are people here doing?

Having their chain dropped on important moments.

RicodJour

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Oct 23, 2010, 9:09:29 AM10/23/10
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Budda bing! Thank you, ladies and gentlemen! A. Dumas will be
appearing here all week!

Good one.

R

Scott

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Oct 23, 2010, 11:23:01 AM10/23/10
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On Oct 22, 11:18 pm, "Mike Jacoubowsky" <Mi...@ChainReaction.com>
wrote:

First, with the cable loose, set the derailleur stop set screw so that
the cage is a tiny bit further out than you'd want it to be when
everything is set. Then, pull the cable taut by hand, tighten the
cable fixing bolt. The cable will be a tiny bit loose. So, adjust
the set screw to allow the cage to move a tiny bit inward, thus taking
the slack out of the cable at the same time.

Ryan Cousineau

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Oct 25, 2010, 10:07:15 PM10/25/10
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Sounds about right to me, and fders are generally not very sensitive
to setup issues as long as the limit screws are set properly.

The pro CXers were using a lower-grade SRAM Force fder with a steel
cage, so as to get a bit stiffer cage. Here's some examples:

http://www.cyclingnews.com/features/photos/katie-comptons-planet-bike-stevens-cyclocross-carbon-team/93620
http://www.cyclingnews.com/features/photos/joachim-parbos-ccv-leopard-cycles-cx1/97787
http://www.cyclingnews.com/features/photos/chris-jones-champion-system-focus-mares-team/94108

So I guess what I'm saying is maybe those Red cf cages aren't such a
great idea.

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