Here's a set of 1/10 scale RC 26mm wide Ford GT-style wheels in 0mm, 3mm and 6mm offsets.
These have been designed to minimise the amount of supports needed on the inside, which saves material and makes them much easier to pull off the bed and clean up. The trickiest part is removing the supports from inside the tyre bead. Using a dissolvable support interface layer would make this much easier and produce a nicer finish, but I can't try this yet.
I haven't driven these yet as they're on a shelf queen, so if you try them let me know how you get on.
Real Filament PLA
For best results, use a slicer with variable layer height (like Slic3r) and make sure the shallow curves inside the wheel are printed at as high a resolution as possible, e.g., 0.05mm. The rest of the wheel can be printed at 0.2-0.35 to maximize strength and cut down print time.