Join Date: Oct 2007
My Motorhome: Swift Kontiki 615
Thanked 854 Times in 766 Posts
I will have a measure if needed, but it depends on the design of rack you go for.
Ours has a three bike Fiamma on our 2003 615 and sadly, it spans the rear window, which may be good for spreading the load, but is rubbish for those sat inside. It was fitted when we got the MH.
It means that we cannot open the rear window more than about 2cm at the bottom.
If I was doing it now, I would go for a towbar mounted one, without a doubt, even if it meant having a towbar fitted first.
Any typo that I make means the errorists win.
Any comments above are only MY OPINION
and should be read as that.