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XTR M9050 Di2 with larger chain rings

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XTR M9050 Di2 with larger chain rings

Old 06-09-15, 06:35 PM
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XTR M9050 Di2 with larger chain rings

Hey all,

So, I'm looking at putting together a flat bar touring type bike, and really want hydraulic discs and Di2 (cos I'm a nerd!).
XTR M9050 Di2 seems a really nice set, and considering another option I was looking at isn't silly expensive.

There is a big, or rather a small, problem though. The chain rings. They're too small.

As a complete groupset it comes with a 40x30x22t chain set and a 116 link chain.
Does anyone know if Di2 can cope with the chainset/chain rings being changed?

Also, so far I've not been able to find another Shimano triple set for 11 speed with the same 10 and 8 tooth difference.
Closet I've found is the 105 5703 triple, that's 50-39-30t, but designated a 10 speed part.

My main concern with this is syncro-shifting, and the overall ratios, might not cope with different differences between chain rings.
Plus chain length.

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Old 06-09-15, 07:41 PM
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explain. if the triple chainrings are too small, why do you need a MTB triple? it seems like a road double would be more what you need.

have you put the various combinations through a gear calculator? 50/34 cranks with 11-32 cassette is quite a lot of gear range for touring.
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