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Hello all,

Can anyone briefly advise on compatibility between an Ultegra Di2 6870 2x11 groupset and other components, such as the EW-RS910 ot the STI levers ST-9070 ?

Thanks in advance.

2 comments

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macrophotofly [259 posts] 1 week ago
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I can do better than briefly advisesmiley, I can give you the link which tells you what is compatable with what -

http://e-tubeproject.shimano.com/pdf/en/HM-CC.3.0.0-01-EN.pdf

This is also quite useful -

http://carltonbale.com/shimano-di2-everything-you-need-to-know/comment-page-5/#comments

But to briefly advise, the Di2 parts are compatable with each other providing you don't mix a FD from one range with a RD from another - they both have to be in the same range. So you can use a 6870 FD and 6870 RD with 9070 Levers (I actually run the reverse on one bike)

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stefanu123 [1 post] 1 week ago
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Exactly what I was looking for yes

Many thanks.