XT or XTR rear derailleur with 9000 shifter?

[ultimobici]

I have been researching this.
Found out that you can use DI2 road shifters with XTR if you use XTR front and rear derailleurs.
The XTR front will work with a compact chainset.
This might be the way to go?

Do you know for sure that an XTR Di2 front mech will shift a compact or are you assuming?

Reason I ask is I'm toying with the idea of building an all-roads bike with Di2 running 46/34 and 11-32 or 11-36 11 speed. Shimano state 10 tooth difference so that may have to be 46/36. But the thing that I'm concerned about is the ability to shift to a 46.


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[rasmussloth]

Why don't you just use 6870 fd or 9070 fd?

Maximum is 16 teeth (50/34)

[ultimobici]

Because it won't allow use of a larger sprocket than 32 on the rear. I want the option of using a 36 as this will be a gravel bike and cross bike. One has to use the XTR front if using the XTR rear.


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[rasmussloth]

I see.

But imo 46/36 is plenty low if you run 11-36t cassette in almost any condition.

[ultimobici]

The 36 sprocket dictates an XTR mech which in turn dictates a matching front mech.


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[rasmussloth]

I agree.

But XTR with 46/36 should be no problem.

[ultimobici]

Cool. I was concerned that it's designed to work on a 40t outer so might not be happy on a 46. I'd like to try sequential shifting possibly.


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