Problem solvers had this MisMatch 2.2 on display. It's designed to allow the use of a Matchmaker type of hardware to simplify the cockpit of your bike in the event that you are using a new Shimano XT shifter with either the Guide or the new Level brakes. They also make a standard MisMatch to all the use of a SRAM shifter with a Shimano brake. Perfect if you are mixing and matching your brake and drive train combos. $39.95 USD