Hey whats up guys, I am currently designing a mini-go kart type device. I was hoping someone with knowledge of these kinds of things could give me some tips. Materials in question: Rear Drive Wheels Problem: The wheels are intended to rotate with the output shaft of this motor See attachment. The rear wheels I ordered have bearings in them however and therefore they do not rotate with the output shaft of the motor. Current Solution: fabricate a coupling with a washer and screw it into the wheel. I can provide pictures of what it should look like to give a better idea. Asking: Does anyone know any kind of wheels that I might be able to search for that will fit directly on the output shaft of the motor?