Cateye Urban Wireless Computer. If you're looking for a no nonsense wireless computer that also provides data about how your rides benefit yourself and the environment then the Cateye Urban Wireless Computer is a superb choice. Not only does the computer provide all the expected speed and distance functions, but the Urban Wireless also estimates calorie consumption and carbon offset for each outing on your bike. So in addition to racking up the miles, you'll have an idea about how many calories you burn each ride as well as how much carbon emissions were saved by using pedal power instead of an automobile to cover the distance.Functions include currentaveragemaximum speed, triptotal distance, ride time, clock, calorie consumption, and carbon offset. A pace arrow lets you know how your current speed relates to the ride's average speed while a power saving mode extends battery life when computer isn't in use.