We are fairly serious road bikes so I was a little concerned as to how difficult this was going to be to attach/detach from our bikes and the amount of drag it would cause. Well, I can tell you after using it that my concerns are no more. There is an easy to use quick attach/detach connection making this a breeze. Also, the bicycle style (but smaller) tires roll easily and create little drag. Finally, the wheels have a quick release button for fast removal and the attachment bar fold neatly under the carrier making transporting it very easy indeed. I recommend this to anyone interested in a pull-behind pet carrier and would certainly purchase this carrier again.