Your indoor cycling experience will never be the same with the Wahoo KICKR Power Trainer. The first iPhone powered bike trainer enables iPhone controlled resistance, open third-party software options and the smoothest indoor riding experience on the market today. The accurate power measurement is achieved with a wheel off design for direct, lab accurate power readings at the hub; consistent and calibrated throughout every grueling workout. The KICKR gives you the ability to connect to devices via both Bluetooth and ANT+, giving you all the data you want through your favorite Apps. This trainer is the wave of the future with more and more third-party software options becoming available, which means the KICKR will never be outdated.