Thule T2 Pro XT Add On rack, extends a Thule T2 Pro XT rack from two bike slots to four. We bought used three years ago, used for a long road trip to California, and have not used since. Would like to get it out of the garage. Great condition. They are kind of tricky to put on but there are YouTube videos that help make it straightforward. Ours was put on by Rack and Road due to a lack of time, but I took it off myself after our trip. $200 or best offer. (currently sells for $520 on Thule website).