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I need to replace my Ultegra 6600 right hand shifter as the ratcheting system is gone. The rest of the groupset is all the same 6600 series.

I am having a hard time sourcing just a right hand side shifter and they cost more than I really want to spend.

I am having a hard time working out what shimano shifters are compatible. I gather there has been a change in the brake pull length, so its critical that I get a compatible shifter for the 6600 brake.

Will a Tiagra 10 speed 5400 combined shifter/brake lever be compatible?

Is there a compatibility chart for the brake pull options?

Any suggestions appreciated.

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1 Answer 1

up vote 5 down vote accepted

The Ultegra 6600 STI lever is available as a right hand only part. It should cost around $400 dollars for the right shifter only, and around $600 dollars for the set.

Any Shimano 10 speed rear shifter, including the new Tiagra 4600 10 speed will be compatible. If you have current brakes, and you use a 10 speed STI lever, as previously noted, you will have no problem with the brake pull.

The compatibility chart can be found here. Drivetrain Compatibility Front Drivetrain Compatibility Rear

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Another brilliant answer from zenbike –  Mac Mar 24 '12 at 11:03
    
I hope that is a joke. :) –  zenbike Mar 24 '12 at 11:47
    
Do you have a link to the diagram, it's a bit small to make out? –  Ifor Mar 24 '12 at 16:11
    
It's a scan of a paper copy, so no links. –  zenbike Mar 24 '12 at 16:27
    
I got a Tiagra 4600 shifter half price and its working nicely. –  Ifor Mar 29 '12 at 7:38

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