While Current Motors in cyberbrick are ok for small RC sometimes a bit more power is required. A board with own dedicated power connection and mosfet controlled output would allow bigger freedom of motor choice without risk to control board. PWM signal from current motor connection would become controlling signal. Same concept as Heated Bed mosfet board used on Diy printers.
Alternatively - small ESC board for brushless motors controlled through Servo connector ( may need some code tweaking)
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On current CyberBrick receiver shield (X11) you have 4 standard servo output headers, where you can attach “normal” R/C electric speed controllers (ESC) of your choice.