The bar fly ttaero has been designed with triathletes and time trialists in mind because it incorporates the same patent pending 18th turn mechanism used on the bar fly 11 which has already been a proven winner the mount uses a 18th turn which allows the display to be mounted in 9039 increments allowing you to get the perfect viewing position and the bar fly tt computer mount is compatible with the garmin forerunner watch and garmin edge series cycling computers the bar fly tt accepts