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If you would prefer a different throttle I can change the throttle in the kit over to any other one that we sell. Please have a look at all of the parts in the kit and let me know if you would like any changes or updates to be made.

The SPD-24500A controller is designed to be used with a hall effect throttle which outputs 1 through 4 Volts to the controller.

A potentiometer could replace the hall effect throttle so that a knob would control the speed of the motor. A 10K Ohm potentiometer works well with the SPD-24500A controller for this and should be wired to the controller as shown in the wiring diagram below.

A potentiometer can also replace the throttle on other controllers so long as you know what the controller's throttle connector is, and which throttle connector wires are +5V, Negative, and Signal.

The controller's negative throttle connector wire should not be connected to the potentiometer otherwise a short circuit would occur which may damage the controller. 

The controller's +5V throttle connector wire is almost always red and its negative wire is almost always black, however, its signal wire is sometimes blue, green, white, or on rare occasions another color.