Top Speed = Total Lengthp * Total RPM
Revolutions per Minute (Total RPM) = RPM value * 60
Area of Circle = 2 * π * Radius, Total Length = Circle * 0.00001578, Radius = Diameter / 2.
For example, when diameter of the tire is 3 inches, Revolutions per Minute Value is 9000, then Top Velocity of Motor will be 80.31041795931334.