On a time trial or triathlon bike, getting your bike computer in the right position can help to optimize your riding position. The Bar Fly 4 TT mounting system includes all the adapters to get nearly any bike computer, light, or action camera in the right place for your TT setup. Features: Fits standard TT bars (22.2mm) with a shim (fits bars up to 24mm) Includes everything you need to mount most bike computers and accessories The 4 TT fits nearly all bike computers including larger Garmin Edge 1000 series units Includes: Composite mount with hardware 7 Computer heads: Garmin Polar Wahoo Mio Joule Cateye Bryton GoPro base/finned mount Light mount Shim for 22.2mm handlebars