This roof-top bike carrier is quick-loading and accommodates most bikes, regardless of frame size, suspension or wheel size. Fits wheel sizes 20 to 29 inches and tires from 1 to 2.75 inches wide. Bike loads in 10 seconds, with no need to remove front wheel and no frame contact. RQL (Ratcheting Quick-Load) system is easy, quick and holds bike securely. Mounts to both Thule?? and Yakima?? load bars. Thule One-Key???-compatible system lets you purchase lock cores that match keys you already own. Ruggedly built: features high-strength steel frame, aluminum tray and resin components.