Originally Posted by
jimc101
Current Deore M615 series is 10 speed, the previous generation M59* was 9 speed, and Alivio is the current highest 9 speed groupset.
For the OP, is the store isn't able to get 9 speed Deore from their distributors, you got the next best thing, and the only option available.
Yes I think this is what may have happened, I don't think it was a mistake. The Deore they showed me were probably the 10 speed but when they went to actually replace them realized they couldn't use those and went with the Alivio instead. Anyway I'm fine with them and I suspect something else is wrong causing the gear shifting to be out of whack. I'll bring it back and have them take another look.