Originally Posted by
fooferdoggie
on our tandem we have a 46 chain ring and a 11-32 or 34 cassette. I want to put a 11-42 cassette on. I don't know if the medium cage xt will do it with extra chain or should I put a long cage on? its a 10 speed setup.
Just look up the max sprocket size and max chain wrap for your derailleur. That info is readily available.