It's a standard sensor wire. This page has a pinout Motor Sensor Cable Doesn't Fit on my ESC – MBoards

It should connect directly to the Turnigy ESC you listed.

RC motors are typically either 2 or 4 poles and I'd guess your motor is 2 poles. More poles mean more torque and that's why motors for skateboards have way more poles because they need more torque to move the board and rider.