Hi, I have a cycleops pro 300pt,but i have been told that the console/bike needs to be calibrated as it is giving out false readings and i cannot do what the machine is reading?! How do i calibrate this console so that it gives a true reading of my training session.Last training session recorded - ave.watts 221,ave cadence 87,ave.speed 21.7mph,distance 18.42 miles,ride time 48.34 minutes.