Enter the following data:

1. Motor Speed, at the full battery voltage. This is usually the name plate rating of the motor. If you are using a higher voltage than its name plate rating, increase the name plate speed in proportion. For example, if it is a 24v motor, rated at 3000 rpm, enter 4500 rpm as the motor speed.
2. Drive gear ratio. This is the shaft reduction speed ratio between the motor shaft and the output shaft.
   For instance, a 10 tooth motor sprocket and 40 tooth wheel sprocket returns a gear ratio of 4.
3. Wheel diameter (actual diameter of the combined tire and wheel at road contact).

   If you enter any non-number, you will get an error message NaN. Blank entries result in 0 or Infinity.