Bike Forums - View Single Post - Having difficulty tuning rear derailleur properly

03-11-21, 09:43 PM

#16

speedyspaghetti

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Quote:

Originally Posted by cbrstar

Got to find the model first. I'm guessing its a RD 6600 so I could be wrong. Here is the spec sheet for the 6600 EV-RD-6600-2358A.pdf (shimano.com) You will see that there is both a long cage and a short cage. You can see the long cage is interchangeable with a RD-5600, RD-7800. The 5600 is a 105 version. So you will have to contact a bike shop that's a Shimano dealer. With the global parts shortage it might be cheaper to pick up a whole 105 derailleur.

So I think I'm just gonna replace the RD with a used 105 or Tiagra, but what I'm running into is that since this is a triple, I need a triple-specific GS derailleur, correct? Or would be able to get away with any Shimano long cage 9 speed RD?

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