Key Features:+/- 1% power accuracySide-to-side movementAuto-calibration and firmware updatesVirtually silent operationMeasures speed, distance, power and cadence dataNEW - WiFi connectivity for faster, stable data transferNEW - ERG Easy Ramp gets you back in actionNEW - Odometer tracks total mileageSpecification:Maximum Power Output: 2200 WattsMaximum Simulated Grade: 20%Minimum Simulated Grade: -10%Product Weight: 47 lb / 22 kgDrivetrain: Belt DriveResistance Type: ElectromagneticPower Accuracy: +/-1%Connectivity: ANT+, ANT+ FE-C, WiFi, Bluetooth, Direct ConnectCassette: Includes 11-speed with 11-28 ratioHub Types: 130/135mm QR, 12x142, and 12x148 Thru AxleAdapters: Includes 130/135mm QR adapter & hub spacer, 12x142/148 adapter & hub spacer, 1.8mm cassette spacerMaximum Rider Weight: 250 lb / 113 kgSetup:Includes 11 Speed cassette.Can switch to accommodate up to 12 SpeedReady to ride right out of the box.What's In The Box?KICKRAC Power AdapterKICKR AXIS Feet - Hard, Medium, EasyQuick