Originally Posted by 2Bims
Yakima box (21) is 92" in length and fits 215's. Thule has a box thats 99". Don't know if either would fit on an x1 though.
Looking, it looks like the Yakima LoPro will fit. And I like the design with the lock handle - just not the price (which doesn't include cross bars).
I have my doubts about the huge Thule one, though.