Garmin Edge 20 GPS Computer. Go the extra mile on your next ride with the easy to use Garmin Edge 20. This GPSGLONASS enabled bike computer is the perfect means to track how far, how fast, and where you ride. Not only is it extremely durable, but it's also the smallest and lightest GPS enabled computer available. At just 25 grams it's a negligible addition weight wise to any bike even for those who obsess over every gram. It's ideal for training and everyday riding. Just place it on the included bike mount and you're ready to roll. Once your ride is complete, upload it to Garmin Connect where you can see a map of your route, analyze it and share it. Use the courses feature to follow new rides, challenge your time on previous rides, or download rides from other Connect users for a virtual competition.