P-51 Rc Wheel

This is the first thing I model for 3D Printing... so if anyone find any mistakes just call it out =)

I'm just getting into the Rc Hobby so I decided to use the little 3D Modeling skills I have to make things by my self, after all we are in the 3D printing generation =)

I model it to fit my needs so its OD is 4 cm and its ID is 4 mm.
I used a rivet as a bearing

If anyone want any different size i can edit the original one and post it here