The Tacx Flow Smart Trainer offers all the necessary features you need for a fully interactive indoor cycling experience. It connects to most popular training apps, like Zwift, Tacx and Trainerroad. And its wheel-on design allows for easy setup and storage. This trainer is the perfect winter training tool.The Tacx Flow Smart Trainer pairs seamlessly with most popular training apps and software to create the ultimate indoor training environment. All Tacx smart trainers measure speed, power and cadence accurately without the need for external sensors. However, when an external sensor is preferred it can be used and connected easily.Even though the Tacx Flow Smart Trainer has a small flywheel, it still has a very decent and smooth ride feel. The 1.6kg (3.5lbs) flywheel is able to replicate a mass inertia effect of 11.8kg (26lbs), enough to give you the feeling of riding outdoors.Tacx Flow Smart Trainer FeaturesConnect to popular training apps, like Zwift & TacxA foldable frame for easy storageWheel-on design for easy setup and storageA fully interactive Smart trainer simulating inclines up to 6%Measures speed, power and cadenceA 1,6 kg flywheel ensures the best ride feel