The most popular system for the 07 jeep wrangler removeable hardtop is the
Yakima #6 Landing Pads in combination with the Yakima Control Towers and cross bars. The set of Yakima #6 Landing Pads (for installing on fiberglass roof tops such as your jeep removeable hardtop as well as pickup truck camper shells and caps) permanently install to your jeep wrangler hard top roof. You will then mount the set of four Control Towers to the Landing Pads and the pair of cross bars to the four Control Towers. Be sure to get at least the 58" crossbar length because this will provide enough room to carry kayaks and bicycles at the same time (and also allow enough cross bar length to adequately span across the 2007 jeep wrangler roof top). You can then mount any of Yakima Racks
kayak carriers and
bike carriers directly to the Control Towers cross bars.