I love the Yakima Exo Swing Base + Exo Double Up combo for bike portage. The swing base is crazy solid, and I intend to play around with another module or two, e.g., the cookstove one. I am reading some reviews indicating that security is an issue, that anyone with 2x 24mm socket wrenches could get the whole base pretty easily - need to investigate.
https://yakima.com/products/exo-swingbase
