iBike iPro Gen III Wireless Cycling Computer: The freedom to train with power, anywhere, any wheel, hub or spoke. Designed for serious training, the iPro power meter delivers wattage, altitude, calories, hill slope, wind speed and more in addition to the standard bicycle computer functions -- all wirelessly. And now the iPro enjoys the benefits of iBike Generation III. The iBike line is completely redesigned to be easier to control and packed with more power.