Bike computers have been connecting to an ever larger sphere of devices, ranging from fitness sensors to smartphones. It only makes sense, then, that they integrate with the bike itself — and Garmin is doing just that with its new Edge 1000. The device can tell what gear youre using when paired with Shimanos Di2 electronic shifter, and ties that info to your ride; its now easy to figure out if dropping gears helped you conquer that hill a little faster.