Kickr Core V2 builds on the trusted performance of the original CORE, and introduces a faster and easier setup, better connectivity, and the addition of key features from the KICKR ecosystemWhen connected to a smartphone, tablet, computer or GPS bike computer, Kickr Core 2 smart bike trainer automatically controls your resistance based on the software or routeKickr Core 2 comes pre-installed with an 11-speed cassette, but is compatible with most 8 to 13-speed drivetrains as well as Zwift Cog and ClickNew features include Race Mode with ultra-fast power data updates and Integrated WiFi with automatic updates and Kickr BridgeRefreshes LED system for clearer connection and status feedbackRedesigned legs offer easier setup while also providing a more stable baseConnectivity: Wifi, ANT+, ANT+ FE-C, and up to three Bluetooth ConnectionsMaximum Power Output: 1800 WattsMaximum Simulated Grade: + 16% , - 10%Smart TrainerElectromagneticBlackUPC/EAN/GTIN: 850048106611