The Suunto Road Bike POD turns your Suunto heart rate monitor into a wireless bike computer. Current and average speeds combined with distance and interval alarms make sessions in the saddle more fun and productive. . Road bike POD is compatible with Suunto t3, t4, and t6 heart rate monitors. Sensor integrated to the front quick release front axis included. Not compatible with 20 mm downhill road axis. Error free ANT transmission with 10 ft. range. User replaceable battery. Universal magnet spoke for both flat and round spokes. Included handlebar mount for attaching the Suunto training instrument to your bike. Due to federal shipping restrictions regarding products containing lithium batteries, this product can only be shipped to the 48 contiguous states. It cannot be shipped to Canada, Hawaii, Alaska, Catalina Island, Puerto Rico, APO, FPO or international addresses. Thanks for your understanding. .