I have a Thule towbar bike rack and first couple times using it was very nervous as visually it doesn't look like it's going to be sufficiently stable and strong enough. However, never had a problem even carrying 3 heavy old style MTB/hyrid bikes.
One point though, always use a seperate registration board with lights. My wife got stopped once by the police who said it was needed even though the reg number and lights were clearly visible without.
One point though, always use a seperate registration board with lights. My wife got stopped once by the police who said it was needed even though the reg number and lights were clearly visible without.