Print 2 of these, use 2 screws and 2 nuts, and you got 2 hooks for your bike or scooter. I use it to carry groceries typically.

No printing considerations, no supports needed, remove the extra material in between the gap after it's done, those bridges help with keeping the piece straight as it prints upwards, the previous versions without the bridges would print misaligned slightly because it's tall and has a small footprint.