Power meters are a great way to train...if you have a spare grand or two laying around. Fortunately, for those of us of more modest means, there's the CycleOps Powercal. This innovative little computer uses your heart rate and a special algorithm to determine how much power you're putting out. And the best part is, it costs about 1/10th of a traditional power meter. Just pair it with your power-meter compatible cycling computer and you're good to go.
World's first-ever power meter calculated from heart rate gives you easy to use, accurate power data
Displays your wattage output without needing to modify any components on your bicycle
Displays real data in real time to aid in your training
Easy to install, set up and maintain
Multisport functionality lets you get consistent measurements across different sport activities
ANT+ compatibility lets you pair with any ANT+ display or computer capable of supporting a power meter