I was talking to my girl about what mopeds/scooters were like back in her hometown of Seoul Korea and she said they're a fucking menace! Haha, so had to see it and found these vids - I dunno how many mopeds you'll see in these, best chance is in the first vid I think I saw a few.
http://www.youtube.com/watch?v=LzryjZFXGQomotorcycles in this -
http://www.youtube.com/watch?v=50DSNBSkXJU&playnext=1&list=PLBD51FCC1F3489A48She was also saying they "get all low, you know like lay on the tank, and they go SOOOO FAST!" hahaha so they cause all kinds of problems. I guess hella people die, but they have so many more riders. The other thing is Korean riders have some weird affinity for horns, so they put all kinds of gimmicky horns on their rides and honk nonstop just to fuck with people.
tl:dr? Korean moped/scooter/motorcycle gangs