Polar m450 gps bike computer with heart rate sensor
The polar m450 gps bike computer with heart rate sensor is a top piece of kit to accompany all riding advanced gps and a built in high precision barometer give precise altitude info and track your speed distance and route monitor heart rate using the sensor see calories and training load do fitness tests and get inspiring feedback and recovery times at the end of every ride this cycling accessorys display is customisable it has a back to start function giving a route to your starting poi