Thule Vertex XT Hitch Mount Bike Carrier Fits most 1 1/4" or 2" receivers with included hitch adapter (Please refer to fit guide) Increased mast height for improved ground clearance Hide-away, heavy-duty integrated cable lock allows you to lock the bikes to the rack and stores inside the hitch rack when not in use. Hold Fast Cradles cushion bike and anti-sway cages prevent bike-to-bike and bike-to-vehicle contact Snug-Tite receiver lock (STL2, sold separately) virtually eliminates hitch rack movement in receiver and locks the hitch rack to the vehicle If you have a bicycle with a non-conventional frame, such as a woman's, child's, or full-suspension bike, you may need a frame adapter to carry your bike on a hanging-style rear mount bike rack. Thule frame adapter: 982XT