Originally Posted by pulsemod
Yea, I agree with this synopsis. There is more friction due to an extra tire in contact with the road, more weight to haul, and added wind resistance. However, I think BOBs are useful in an urban setting because you can use them to haul bulky items like ladders, chairs, 4 large packages, or whatnot.
The big problem with a BOB trailer is that whoever is touring with you can't draft off you!