HANOI - JULY 20: Unidentified riders ride motorbikes on busy road on July 20, 2012 in Hanoi, Vietnam. Motorbike is the most favorite vehicle for Hanoians, so Hanoi is always called the motorbike city.
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HANOI - JULY 20: Unidentified riders ride motorbikes on busy road on July 20, 2012 in Hanoi, Vietnam. Motorbike is the most favorite vehicle for Hanoians, so Hanoi is always called the motorbike city.