Thule's Snug-Tite Receiver Lock secures their T2, Doubletrack, Roadway, and Parkway receiver-type racks (also called "hitch racks"). Just insert the Snug-Tite in place of your receiver pin and the rack is locked in place.

Saris' Bike Beam connects to your bike's seatpost and stem to simulate a standard top tube. It allows you to carry bicycles including full-suspension, women's, and children's bikes, and those with oversize tubing on your trunk or hitch-mounted carrier.