If you like to bike in groups, you know that it's not always easy to keep everyone together. What if your miniature peloton has to split, or someone wipes out and you don't notice? Garmin wants to put your mind at ease. It's unveiling two cycling computers, the Edge 820 (shown at left) and Edge Explore 820 (right), with a GroupTrack feature that shows where everyone is regardless of how far apart they are. You'll also get a preloaded Cycle Map with bike-friendly data, a 2.3-inch touchscreen (smaller than on the Edge 810) and support for Garmin Varia gear like the Vision headset.