Bar Fly 4 Direct Mount, Black Improves field of vision by creating a heads up point view Out front centered mount designed specifically for Fizik R1 and R3 stems, and 3T stems with a slotted faceplate Mounts directly to the front of the stem and de-clutters your bars Wind tunnel tested to save you 7sec/40k Compatible with Garmin, Polar, Mio, Magellan, Wahoo, Cateye, Joule, and Bryton computers