Polar heart rate monitors are some of the best in the business, allowing cyclists and other athletes to get detailed information about their performance that goes far beyond your average BPM measurement. The Polar CS100 is a heart rate monitor designed specifically for cyclists because it also gives you a read out that shows your speed in real time. You can find out your current speed, check your average pace and even see the maximum velocity which you have attained using the Polar CS100. In addition the intelligent software automatically indicates what it thinks your daily heart rate target should be during training.
The Polar CS200 takes things up a notch, letting you see your current pedalling rate as well as your average over a session. The Polar CS200 also gives you access to an online training diary which you can access from Polar's website, showing detailed analysis of your riding and letting you chart improvements over a long period. The Polar CS300 is a heart rate monitor for cyclists which can be worn on the wrist or mounted onto your bike, so you have the flexibility to pick whichever setup is the most convenient for you. Like the CS200 the Polar CS300 gives you access to an online diary where your stats are stored but it also has a built-in fitness test which can analyse your aerobic performance and indicate when you have reached a stage of amelioration.
Polar produces a number of other cycling-specific heart rate monitors which implement even more comprehensive software packages for very serious riders.