my 60volt rear drive tire spins the wrong way
Is the motor a brushed type with two thick wires, or a brushless type with three thick wires?
If the controller does not have self-learning wires then try different combinations of connecting the motor coil wires to the controller's motor coil wires. No harm can be done from any combinations of these wire colors as long as one of the wire colors is the same. Here is an example.
Please let us know how it goes.