These brackets can handle wheel sizes from 2.2 Inch to 2.6.
Print settings:
Filament: PETG (can be also printed with PLA but PETG is stronger )
Support: No
Resolution: 0.2
Infill: 25% (I use the 0.2 strong profile)
The author remixed this model.
Inspired by this design I created a stronger version with options for several wheel sizes