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PostPosted: Thu Apr 26, 2012 5:47 pm 
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Location: Utah, USA
Which rear road derailleurs have the correct actuation ratio (1:1) for Sram 9-speed grip shift? I'm thinking through a weenie solution for a flat bar commuter build. Would the SRAM 10-speed derailleurs (force or rival) work? Thanks!

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Trek 5500 - 13.75lbs on a $1400 Budget
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PostPosted: Thu Apr 26, 2012 8:18 pm 
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Location: UK
As far as I'm aware, none!

You could use a short cage 9 spd mtb mech though. (SRAM road and 10 spd mtb use a different cable pull to 9 spd).

Alternatively, you'll need shimano mech and shimano compatible gripshift.


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PostPosted: Thu Apr 26, 2012 8:41 pm 
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Hmm. What about SRAM attack grip shift (for shimano) with a DA 7700(or 7800) RD? Seems like that should do it. Right?

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PostPosted: Thu Apr 26, 2012 10:19 pm 
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2002maniac wrote:
Hmm. What about SRAM attack grip shift (for shimano) with a DA 7700(or 7800) RD? Seems like that should do it. Right?


that should work perfectly indeed. I use sram rockets (nearly the same as attack, just the rubber grips are different). You can also install a medium or large cage to a shimano road rear der. I would recommend to think about what rubber grips fit you better. I only like the ones of the X0. You can also purchase the X0 grip shifts too, then switch the rubbers and sell the X0 with the rubbers from the attack. I suggest this as it's much cheaper to buy the full x0 grip shifts rubber included, that buying the rubber grips separated.

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PostPosted: Thu Apr 26, 2012 11:59 pm 
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Thanks, I'll probably remove the rubber grip and replace it with a piece of ESI foam.

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Trek 5500 - 13.75lbs on a $1400 Budget
20 gram 1x10 chain guide


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PostPosted: Fri Apr 27, 2012 12:10 am 
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Location: Utah, USA
This bit of marketing ooze makes me think that a sram road der should work with sram twisties:

Quote:
When we launched our road technology from scratch we reapplied our MTB proven SRAM 1:1 actuation ratio...


Is it really not the same?

I'd like to go sram if possible because the RDs are lighter for the money and I already have an X0 rear shifter.

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Trek 5500 - 13.75lbs on a $1400 Budget
20 gram 1x10 chain guide


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