The document summarizes a presentation by Davis Wang, co-founder and CEO of Mobike, about transforming cities through biking. It discusses how China used to be the "Kingdom of bicycles" but cars increased, causing congestion and pollution. Mobike provides station-less bike sharing that allows bikes to be unlocked through a smart lock and mobile app. Within six months of launching, Mobike grew to serve over 10 million users across 12 cities and 151 nationalities, using big data to help transform cities.