I really wanted one of these since I saw pictures of Eric Zo on his when he won the messenger worlds cargo bike race. Zo designed it, apparently. Rick Hunter built three. I just bought Rick's- the NAHBS show bike (um, PNS Syndrome there). I didn't have a 20" wheel fixed gear travel cargo bike, so I couldn't say no. It actually rides really well. To the extent I'll probably take the front rack off and commute on it. 45mm road tyres rock.