Bar Fly Prime Direct 1 Mount Description: Seamlessly mount almost any computer on the market to the faceplate of a compatible stem using the Bar Fly Prime Direct 1. This "one and done" style of mount increases carrying capacity and offers multiple computer positions. Mount a GoPro or light on the underside for the most versatility. Check the compatible stem and computer notes below to ensure a proper fit. Features: Two mounting positions accommodate large and small computers Multiple computer heads mounts included Out front style mount for ease of quick glances to stats Mounts to slotted faceplates of a range of compatible stems Compatible Stems: Felt AR Cervelo Carbon ST-C026 Cervelo Ultra Light Aluminum 2019 Cervelo bicycles: R5, R3, C3 and S3 3T ARX II with slotted face plate (different than 3T logo plate, available for purchase separately from Bar Fly) Fizik Stems (All) Compatible Computers: Garmin Edge Series: 200, 500, 510, 520, 800, 810, 820, 1000, 1030, Touring Watches: 910XT, 920XT Polar: M450, M460, V650 Wahoo: ELEMNT and BOLT Mio: 500, 505, 505HC Cyclo: 200, 205HC, 210, 315HC, 400, 405, 405HC, 505HC, 605HC Magellan: 315, 505 Cateye: Wireless models Padrone, Strada, Micro, Velo Bryton: 100, 300, 310, 330, 530, 10, One, 410 Bryton: Rider 60/ Rider 200/210 (Use Garmin head) Lezyne and Powertap computer heads are not included but are available for purchase Includes: Bar Fly Prime Direct 1 Aluminum mount Mount hardware Screws for Computer and GoPro adapters Prime Position Plate and 7 Computer heads: Garmin, Wahoo, Cateye, Bryton, Omata, Polar, Mio Prime GoPro compatible base, knuckle bolt