Really like that. Brifters work with MTB derailleur because it's 10 speed, right?
It's 9sp RD, pre dyna-sys, so it works like a charm with 10s ultegra.
Is that a clutched derailleur? I’ve got a long cage 105 5700 on my 10-speed drop bar mtb frankenmix. Seems to handle 11-34 at the back no problem but I guess it would probably not be as good when properly off road. Hadn’t considered a 9-speed XT.
@stromo started
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Really like that. Brifters work with MTB derailleur because it's 10 speed, right?