Road derailleur for 9-speed grip shift?

[2002maniac]

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!

[breezerboy]

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.

[2002maniac]

Hmm. What about SRAM attack grip shift (for shimano) with a DA 7700(or 7800) RD? Seems like that should do it. Right?

[Liggero]

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.

[2002maniac]

Thanks, I'll probably remove the rubber grip and replace it with a piece of ESI foam.

[2002maniac]

This bit of marketing ooze makes me think that a sram road der should work with sram twisties:

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.