Space is valuable, and hardware-store hooks not only suffer from utilitarian appearance, they force bicycles perpendicular to the wall. The Velo Hinge from Feedback Sports, on the other hand, allows the hook to pivot, so bicycles take up less floor space.
Just as appealing as compact storage, these quality powder-coated steel hooks collapse and are hidden when not in use -- which means a clean aesthetic that's suitable for studios or apartments. The Velo Hinge comes assembled for left sided pivoting, but can be switched for use to the right. Feedback Sports rates the Velo Hinge at 50 pounds, so everything short of electric-assist bicycles can hang out.
The Feedback Sports Velo Hinge measures 7.25 x 3.5 x 0.63in folded.
I got 6 of these for me and my family to store our bikes. They are amazing. I mounted them on typical stud width(16" on center) and with some up and down adjustment for each bike I was able to get the bikes really tight to the wall without them banging into each other or getting scratched. Put 6 bikes on the wall and can now park in the garage again. The furthest any of the bikes are from the wall is 28". Basically the width of the bar on my Highball. Installation was a breeze. Way easier than your typical bike hook. If wall space wasn't a premium putting them at every other stud as seem in the pics above could make things easier. In order to get my bikes as tight as I did I had to make some adjustments.