When cycling with heart rate is the heart rate monitor on your wrist rather inconvenient for continuous heart rate monitoring. Using the bicycle holder has his pulse "on the dashboard." The heart rate monitor can be easily attached and removed (theft prevention). The holder comes with some cable ties (6?) Delivered, with which it will be mounted on the handlebars, which also worked well. Will now, when you change the bike, eg switch from racing to mountain biking, the cable ties must be replaced (waste costs) or a separate holder on the second bike you have to buy. I did not like, so only four stars. An earlier version, there was a very stable rubber band, you could use to wechelnden locations without producing unnecessary waste or additional costs for a new mount to haben.POLAR fitness computer POLAR F6POLAR accessory bike mount