Key Features:Customized fit, shifting and gearing to match your outdoor bike.Real-time physical grade changes for immersive and realistic rides.Accurate power measurement of +/- 1% with up to 2500W of resistance.Virtually silent operationNEW - Direct Connect and WiFi ConnectivityNEW - ERG Easy Ramp gets you back in actionNEW - Odometer tracks total trainer mileageSpecification:Maximum Power Output: 2500 WattsMaximum Simulated Grade: 20%Minimum Simulated Grade: -15%Product Weight: 93 lb / 42 kgDrivetrain: Belt DriveResistance Type: Electromagnetic and enhanced motorPower Accuracy: +/-1%Connectivity: ANT+, ANT+ FE-C, WiFi, Bluetooth, Direct ConnectCrank Arm Lengths (mm): 165, 167.5, 170, 172.5, and 175Rider Height Range: 5 feet (152 cm) to 6 feet 4 inches (193 cm)Maximum Rider Weight: 250 lb / 113 kgSetup:Simple assembly required.What is the box?KICKR BIKE smart bikeAC Power AdapterAllen Wrenches (4mm and 5mm)Platform PedalsHandlebar AssemblySeatpost and Saddle AssemblySupported Devieces