J&L Bicycle Computer Mount-fit for Garmin Edge 200/500/800/510/810&Bryton,MIO-25.4/25.8/26mm For 25.4mm/25.8mm/26mm handlebar (with the adapter) Approximate Weight: 22g Fit with following: Garmin Edge 200/500/800/510/520/810, Fit with following: Bryton Rider 20,21,30,35,40,310 (Except 50), MIO