Originally Posted by
SevetS
Question - If the transmission ratio is constant (2.65 in xb2), does it really matter what spur you run if the gear ratio is the same? A 75/36 (2.083) should run close to a 69/33 (2.091), which should run close to a 66/32 (2.063), right? Other than a slight weight transfer due to motor position, is there something else I'm missing?
Motor position and mechanical torque advantage play a part in the spur selection.