Gearing Commander M.P. RPM example

The M.P. RPM (Maximum Power RPM) in the GC database is the RPM when reaching the top of the power curve (Max power @ x RPM) stated by either manufacturer (when available), bike reviews, published Dyno-runs or other sources when available. It is not the red-line RPM on your tacho nor the RPM the rev-limiter kicks in! In this case it would be 9750 RPM.
 
But you can change the value of this field as well so you can enter the RPM you think your bike is making and calculate your top speed ....

You can just enter another MPRPM value in this field or use the up- & down buttons beside it:
1 short click: Add or Subtract '50' once
Hold button:  Add or Subtract '100' repeatedly