The Garmin Extended Out Front Handlebar Mount is an extended plastic mount meaning the edge is out in front of you increasing safety by allowing for an easier heads up.  This means you can take full advantage of the data your edge is providing you with.  This Garmin handlebar mount fits 31.8mm bars and is compatible with the edge 1000, 810, 800, 510, 500, 200.    Garmin Extended Out Front Handlebar Mount Features Fits 31.8 mm bars Compatible with Edge 1000, 810, 800, 510, 500, 200 Weight - 30 g Made from impact resistant plastic