Cactus Bikes is the way to go!  Very smart bike techs and good gear!  They will fix your bike problems that other shops can't fix!\n\nI bought my bikes at Global and was taking my bikes to them for service because you get \"free tune ups\" if you buy your bike there.  My $3000 bike did not shift right from day 1.  I took it back to Global 4 times and even tried 2 shops (Gilbert and Ahwatukee).  I was told that's just how they are supposed to shift.  Even though it was skipping gears and shifting REALLY slow.  \n\nFinally I took it over to Cactus.  They made a few small adjustments and it was shifting like it should have right from the start!  Thanks to Cactus for fixing my bike!  I won't be taking it back to Global ever again!