Electronic & Hydraulic Shifting (Di2, Ui2, customisations)

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hippy in reply to @amey

What exactly are you running? SRAM 36T with medium cage Di2? Are you using Wolftooth?

I might try one of these 34T Shimano cassettes or see what the go is with running 11spd Shimano MTB hubs and cassettes on road.

https://www.cxmagazine.com/shimano-xtr-m9000-11-speed-road-compatible-questions

Can I use the XTR M9000 cassette on my 11-speed road setup?

Maybe. It should clear your spokes and fit on your 10-speed and 11-speed (with a spacer) freehubs, but your rear derailleur will likely be incompatible with the 40t cog. However, some clever folks have figured out that a longer rear derailleur B-screw can be a cheap hack to make it work.

Also: http://forums.mtbr.com/cyclocross/xtr-11-speed-40t-cassette-11-speed-road-shifters-945660.html

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amey in reply to @hippy

What exactly are you running? SRAM 36T with medium cage Di2? Are you using Wolftooth?

Ultegra med cage with SRAM 1130 11-36: https://www.pedalroom.com/bike/carbonda-gravel-bike-1x11-di2-30292#photo239239

No wolftooth, B screw is about 70% in so if there was a 38t it would also work.

Can I use the XTR M9000 cassette on my 11-speed road setup?

I don't think so unless you go for an XT (or XTR Di2) rear mech. Maybe @Emyr can clarify.

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hippy in reply to @amey

So I could avoid needing a Wolftooth if I had a medium cage RD rather than my short cage (probably). I think Wolftooth or longer B-screw + SRAM cassette is cheapest option for me.

But it also looks like I could run the XTR 11-40 cassette on my current setup if I fitted a Wolftooth.

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