IKEA.com dubs its Broder system, "sturdy storage that goes anywhere."
"We needed a way to store our 2 bicycles inside. We are renting and wanted something that didn't screw into the walls or ceiling. We liked the look of the Stolman hack, but when we got to Ikea they had replaced the painted aluminum color Stolman system with a creamy off-white color that we didn't like. We went with the Broder instead and as a bonus this is a much cheaper system - the entire bike rack cost us about $20. You'll need: 1 x Broder long post (80.25" or 204cm), 1 x Broder height extension post and foot, and 2 x packages of Broder front facing brackets."
So, a total of $20 worth of IKEA goodies and some scrap dimensional lumber. Can't be that.