. One bar is 66 inches and the other bar is 48 inches. I can change Q tower for whichever size bar you want. I also have three fork mount trays, obviously I can’t split them up evenly, but the first person can have two. If you have a through axle, I have one adapter. I have keys, but I’m not sure if I have two sets. All but one of the trays and the Q towers use the same key and I’m sure you can get another one from Yakima. I’m asking $25 for each set. One of the towers clamps onto a factory roof rack, and the other one I used on a rail system. You would need the footing piece that slides into the rail.