Yakima's RidgeBack 4 securely transports four bikes with Yakima's cradles and their simple-to-adjust, ratcheting ZipStrips. Constructed of lightweight aluminum, this innovative hitch rack comes fully assembled out of the box for ease of use. Just plug it into the hitch, tighten and lock the SpeedKnob, and you're ready to load up the bikes! In addition to carrying traditional double-diamond frames with zero bike-to-bike contact, the anti-sway cradles are specially shaped to be compatible with non-standard and full-suspension frames. Plus, the Upperhand control lever allows the rack to fold down, away from back of your vehicle, for unimpeded trunk/hatch access, or when not in use, lets the RidgeBack fold flat for storage.