Joined: May 2009
Posts: 273
Likes: 48
From: Brazil, Londrina PR
Bikes: Kona Unit, Kona Kahuna, Kona Dew DL, Scott Big Jon, Trek Checkpoint ALR4, KHS Urban Soul, Haro Team Issue, GT Force Expert Carbon, Bernardi Quadra.
I don't see a problem with a singlespeed cargo bike, and as for the vertical dropout issue, I'd go for the white industries eccentric hub, it looks a lot better then having a tensioner.