Wahoo Fitness Bike Case for iPhone
The Wahoo Bike Case allows you to safely mount your iPhone on your handlebars and connect to a variety of ANT+ wireless sensors (sold separately) through the built-in ANT+ transceiver, including power, speed & cadence and heart rate. The Bike Case fits iPhone 3G, iPhone 3GS, iPhone 4 or iPhone 4S.  With the Wahoo Bike Case, your phone, your favorite playlists, the best fitness Apps and real-time activity information are all in the palm of your hand... or mounted on your bike! NOTE: Does not fit the iPHONE 5 or the iPod Touch.