This is a modular tire system for any rc with a 12mm hex on it. the tires are all under 122mm most around 110mm in size and about 32mm width.
I used the designs from these two creators. ChMiBr, and martimo. make sure to check out there AWESOME designs! and special thanks to them for letting me use and modify their designs.
The rims should fit although they may be a little tight on the hex but they do fit once squeezed on. the outside of rims and inside of tire aren't a perfect fit so to fit them together just wrap a little tape around the rims and squeeze them in: if its necessary just glue them on. If the rims don't fit then sand the outside of the rims and the inside of the tire.
I tried my best and I'm still learning so feel free to help me out with any tips or design changes :). I'm still a little new so I would love to get in touch with more experienced people.
a higher infill is suggested with flexible filament
on some tire with overhangs like the Knubbed tire it may require supports.