Each Bike is equipped with Hall effect sensors for measuring flywheel rotational speed (to capture cadence) and resistance. The sensors reference the Output values on the sensor control board and communicate these values to the Peloton HD touchscreen multiple times per second during a ride.
The Peloton Bike does not take direct, instantaneous readings of Output. These readings are taken at the time of manufacture and due to manufacturing variability, we expect ~10% Bike-to-Bike variability in Output readings. The Peloton leaderboard and Output readings are intended to be fun and useful tools offering directional performance measurement that helps riders motivate and achieve their individual fitness goals.