I bought the clutch as the clutch, which was the hangers did not fit on my fahhrad. because I have a thicker seat post, I was skeptical whether this fits my bike. But it fit. It adapts many saddle rods, that's really an advantage. disadvantage is that the clutch does not open properly. I have to ask for wrong purchase or hang the hanger my Fahhrad or remove the seat post and hold it wrong then. This is very complicated, hence only 3 stars because if the trailer is tuned, then hangs the.