Simple and effective. Wagner's offering of u-loop, u-shaped bike racks includes everything from an economical 32" high bike rack to a heavy-duty 42" high bike rack. It also includes more unique styles like a square tube bike rack designed to deter theft and damage, and our unique knock-down style that ships as a kit with installation hardware included.Please find our knock-down style installation instructions here. These instructions are only to be used with the following u-shaped bike racks: SR1LW, SR1LW-BLK, SR1LW-SM, SR1LW-SM-BLK, SR1LW6, SR1LW6-BLK, SR1LW6-SM, and SR1LW6-SM-BLK.