I love my Bell F20. It is wired and works great. No issues. I mountain bike so I do not need a sensor for my petals. It also helps me track mileage for maintenance. If you have a smart phone there are several "apps" to get. They also keep track of your GPS trail which is kind of neat. If you use more than one, i.e. computer and GPS, you will notice they do not match. Or at least I have never been able to get them too. By the way I use MOVE! Bike computer and started using Strava. And also use the training section with membership on Singletracks.