This is a lightweight 2.2 beadlock wheel which I made for my Bully 2 MOA crawler. The center portion is vented.
To assemble you'll need a great deal of M3 screws, and a hub.
I've printed it in PLA and PETG. It holds up to abuse pretty well unless it's very cold outside.
EDIT: I added the fusion 360 file. I'm a complete novice, so pardon my design skills.
The author marked this model as their own original creation.