The Rock and Roll | Smart combines the world’s only free-moving fluid trainer with intuitive app-based power training. No other trainer delivers a more realistic experience and cycling-specific core workout. The pre-installed inRide sensor technology allows riders to connect with world of training possibilities with apps like Kinetic Fit, Zwift, TrainerRoad, Rouvy, Kinomap Trainer and FulGaz on Bluetooth®-connected smart phones, tablets and laptops. No additional sensors or add-ons are needed. Enjoy real-road feel from the precision-calibrated fluid resistance unit and access online training tools, content and power data - all at your fingertips. All backed by the industry’s best warranty. Fluid resistance adjusts with wheel speed and is not app controlled. Learn more about Kinetic fluid resistance here.