I designed this model because i couldn't Find a commercially available Vertical bike rack that had everything i wanted in a bike rack. I didn't want it to be cumbersome at all but i also wanted it to be secure so i didn't have to stress about my bike falling out. i also didnt want to have to hold the bike up myself while i reached to engage a latch of some sort as one of my bikes is a pretty heavy Ebike. On top of that, racks that did have everything i wanted where often near 100 dollars.