If you have a coded heart rate monitor we recommend that you bring it with you. We work with Polar, Garmin, Suunto and other ANT+ straps. If you have a Garmin or ANT+ strap you will need to know your unique HR code. To access this on your watch or bike computer, go into settings under heart rate and look for sensor details to get your unique HR code. This code will be needed to identify your HR amongst all the other riders. Don't panic if you can't find it, we'll help you but you must arrive at 10 minutes before the session.