The original Thule go-to carrier for 4WDs and cars with a rear door mounted spare tyre. Need a hitch mounted four bike rack but have a spare tyre mounted on the rear door The answer is simple with the Thule Hitching Post Pro. It has the longest insert bar of any hitch mount measuring 35cm from hole in shaft to upright of carrier meaning it will clear most spare tyres. The arms fold down when not in use it fits 50mm receivers and can carriy four bikes up to a combined weight of 63kgs.