You can track and record performance data without extra external sensors. Plus, the innovative clutch knob ensures perfect tire-to roller connection for every single ride.+/- 5% accurate power readingsControlled, electromagnetic resistance provides a precise workout every timeSeamlessly connects to indoor cycling apps with dual ANT+ FE-C and Bluetooth standards.Integrated cadence, speed and power data - no external sensors neededZwift certifiedIncludes one month subscription to ROUVY virtual training app