Sigma Sport BC 1200 Wireless Computer. Stop messing around with all those wires, and spend more time actually enjoying your ride. The Sigma Sport BC 1200 wireless computer is an easy to install, easy to use bike computer that gives you a host of features to be a little more informed about your riding. It'll give you info like speed, distance, average speed and a trip countdown. Your info is displayed on a large, easily read LCD screen. You can even switch it between two different bikes with minimal hassle. It's ideal for commuting, light training, or anyone who just wants to know how far and how fast they rode.