The Stages Power meter used on all power meter-equipped Stages Indoor Cycling bikes is functionally identical to our left crank-based power meters used on outdoor bikes, with the power readings displaying the same high level of accuracy. The perceived exertion of riding indoors, however, does not always feel the same, so keep in mind that the extra heat and sweat of indoor training may affect how hard the workout feels. By using a power meter, however, you are able to overcome the differences in feel of perceived exertion by relying on power for consistent and effective training.