These are the bike taxis that they use in some cities in China. We don't have them in Yanji, but I first saw them in Tumen this summer. They only cost one yuan (13 cents) per person. I thought they were so cute; they gave the city character. They also have them in Beijing, offering rides through the famous old alleyways of the city, but they're much more expensive there (at least at the rates they quoted for this tourist). I tried to take one to meet my friends just across Tiananmen square one night, and they wanted 20 yuan!