The key element in fitting a bike successfully is rider input. It is the rider's input that makes or breaks the fit. Specifics that measure knee angle or bar width are static and need no interpretation from the rider, but "do you feel" questions are solely the responsibility of the rider. The beauty of the Guru machine is the automation of movement while riding, which will provide immediate feedback to the rider.

You are going to love it.

Fair warning: Many shops are taught to use the "Professional Fit" as a sales tool to move parts or complete bikes.