For cycling and cross training, the CS300 is the optimum choice for cyclists who like to get their cardio fitness from sports other than just cycling. Its versatility means you can either wear the CS300 wrist unit during indoor fitness training or mount it onto your bike when cycling. Measurements - heart rate as well as current, average and maximum speed Determines daily personal heart rate targets for optimal training The Polar Fitness Test - this measures your aerobic fitness at rest and tells you your progress Allows you to connect to your online training diary at polarpersonaltrainer.com Polar OwnCal - calorie expenditure Bike Settings - for two bicycles, allowing you to have different settings for up to two to three bikes in your training Current, Average and Maximum Cadence - Your cycling cadence is your pedaling rate in revolutions per minute (rpm). Cadence is the main factor in improving cycling performance. A higher cadence reduces the force you need for each pedal stroke, therefore improving overall performance. Data Transfer - compatible with PC via SonicLink and WebLink Watch Features - backlight, date and weekday indicator, dual time zone, time of day (12/24h), water resistant (50m) The Polar CS300 offers fantastic versatility for cyclists who need a multi purpose hear rate monitor which is suitable for cycling and other training methods.