Polar

Polar's RS800CX Bike has everything you need to turn rides into fun, efficient workouts. This feature-packed computer/heart-rate monitor includes an altimeter that measures cumulative ascents and descents, heart-rate-based target zones with alarms, interval trainer and timers, and calorie consumption in rate/hour. It even has an interval measurement that records your relaxation rate during exercise as well as at low intensities. And, with the simple data transfer via Polar's USB adapter and the ProTrainer 5 software, customizing a training plan couldn't be easier!