Price: $399.95  

How do professional riders and racers know how steep those monstrous hills are The Polar CS600 Cycling Heart Rate Monitor is one way. This monitor measures your altitude ascent and descent in percentages or grades. Choose which features you want to display on the oversized, three-row LCD display. Let the Interval Trainer help you hit your peak during intervals and keep an eye on your target heart rate so you can sustain power throughout endurance workouts. The Polar CS600 also helps you figure out when youre dehydrated, running out of fuel, and not quite recovered from yesterdays workout. Analyze your races and training. Grab the Polar Power Output and Wireless Polar speed sensor W.I.N.D. (both sold separately) to measure current, average, and maximum speeds (wirelessly), cycling efficiency, and to set upper and lower heart rate, cadence, or power limits. *Included bike mount, multifunctional handle bar/stem installation.