[Saviour]

Lets talk motors for a moment.
These uni motors. SLOT.IT SIMX06 - V12/3 21500 RPM, NSR 3005 SHARK MOTOR 40K. Just for example, there are others.
The shaft sticks out both ends. Pinion on one end. Nothing on the other.
Who cuts off the end that sits vacant?
I was just about to on a slot.it motor. It's well clear of the tyre. So why bother. Then I thought, balance, cutting it off would upset that.
Am I right in my thinking?

 

[Saviour]

So, we are in agreement then. Pointless. Best leave the motor as is.
Have wondered about hollow Axles, on the rear, are they worth it. I think not. On the front, OK, then pin the wheel in place to give each wheel it's independence.