My older xt derailleur barely has a long enough cage to pull up that much chain slack. As it is, I had to shorten my chain an extra link to pull the upper pulley off of my 32 tooth cassette. My bike is a little older FYI... (2006) so yours will probably work just fine - fyi...
You should be able to look up the amount of gear inches your derailleur is able to handle.
Last edited by mtnbud; 10-05-22 at 11:52 AM.