I recently acquired a Burley Travoy trailer for hauling my camera gear around local parks and such. I decided to ride my 29er to work the other day and used the trailer on my commute. The interesting observation was cars seem to be far more courteous and patient with the trailer in tow. Maybe I just caught the right alignment of the stars or something but the difference was noticeable. I am going to try it again today with a different bike and see if I have the same experience, lets hope so. On a side note the trailer is great I barely even know it's there.