This is a simple and low-profile spare tire rack for a RC car. It uses a 4mm (25mm) bolt and nut to hold the tire on. For simplicity, I used a wing nut, which required a spacer so the wings did not hit the bolts on the wheel.
I have updated the orginial design to make the area where the bolt goes through stronger. I have also added two new designs allowing for narrower bolt placement on one side.
Added supports for the back side of the body in all lengths need. Each has a place to put zip-ties through to hold wires down.
UPDATE: I have added a "V2" version of one of the tire racks, this one has longer legs to make mounting over things like bumpers and such easier. It is what is shown mounted on the TRX6 (on the back gate).