This is a remix of the mtb bracket shown on Seths Bike Hacks. This bracket is to be mounted to a wall where the bike tire can be inserted to hold bike in upright position.
Compared to the original this model adds:
Notes on printing:
I recommend draft printing a few sizes closet to your tires measured size. For these, print ~5mm of height for each bracket so you can quickly test fit. You want something that easily snaps over the tire – it gets stiffer as you print the full size so you don't want too tight a fit.
Filament choice and level of infill will determine how spring-y it is. I'm using PLA+ with 4 walls at 20% infill. I wouldn't go below 20%, but due to print orientation even that level seems plenty strong. Consider a more thermally stable material than PLA if using in a space like an uninsulated garage.
The author remixed this model.
This model adds variety of sizes, holes for easier use, and links for simplifying user modification.