Originally Posted by
mjac
The Tourney is suitable, I think it is just worn out. Too much play to precise. I picked the Acera because I have an Acera shifter and they say the Acera Derailleur works great with the Acera Shifter. It looks pretty ruggedly built. Don't know what the Bike Shop is going to charge me but Amazon has it for $25.
I'm not sure who "they" are, but 9 speed & less mountain components all play pretty well together.