Quadriciclo muito interessante
Down and dirty get-er-done wooden trailer.
Looks good, I'd match the inner diameter of the tube to the outer diameter of my seatpost, though.
bike trailer ball hookup
Bicycle cargo trailer from Sears
The completed pedicab trailer.
Bike Hacks...who needs a car on campus. #GroceryRun
bicycle sidecars - Google Search
Bike Chariot | This would be hard to balance on, but it looks like so much fun!
Find DIY or Bike Passenger Extender like this!