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.