What bike carriers are people buying for their prime?

Hi Everyone, Just wondering what racks people are using or plan to use?
Im after a tow ball mount and looking at the yakima foldclick 3. Its got a 60kg rating and holds 3 bikes which suits my family. It also has space for the fat tyres and folds down to allow boot access.
Any reasons it wouldnt fit the prime?
My only real concern is the prime frame itself and how secure the mechanism would hold it as i cant tell how thick the frame is.
Thanks