Security, convenience and revolutionary new cradles with Road Dampening Technology make the Thule 9205 Apex the most complete hitch rack on the market. . Hold Fast RDT Road Dampening Technology Cradles absorb the shock of the road protecting your bike during transport. Snug Tite receiver lock virtually eliminates hitch rack movement in receiver and locks the hitch rack to the vehicle. Arc design of the arms gives bikes greater clearance off the ground and provides greater distance between bikes preventing contact. Increased mast height for improved ground clearance. Patented No Sway Cage to prevent bike to bike contact. Heavy duty integrated lock allows you to lock the bikes to rack and stores in the hitch rack when not in use. Folding Hitch Switch allows the arms to fold when not in use and tilts the carrier down for rear of vehicle access. Integrated handle for easy carrying and handling. The Thule Apex is offered as a 4 bike 9025 or 5 bike 9026 model. 4 bike 9025 fits 1.25 in. and 2 in. receivers. Note: Some kids, womens, and BMX bikes may require a Thule 982XT Frame Adapter to sit properly on this rack.