designer's own words:This bike can be useable for user to take public transportation. also it is useable for citizen and traveler at city and metropolis. It's shape is a mix of bike and wheel bag. user can load up his bag on the rack of bike by scrapping. it is useful to office worker, student and foreign traveler. It's chain and toothed wheel are in frame. and the brake can be worked by turn the handle. so it looks neat and safe. in addition it's diversity color makes city be vivacious.