HEy, I borrowed my friends trailer because I wasnt sure how the girls would go....well dd2 who is almost 1 screamed the whole time and dd1 who is 2.5 wasnt too keen...too bumpy! So i wont be getting one. I think thats why they are as new. See if you can try before you buy or just pick up a second hand one. They are light on the bike....dont even notice its there.