The Berkcycle system will consist of bicycles and bicycle racks that will be designed and manufactured by the Berkcycle team to fit the need of the students of University of California, Berkeley campus. The bicycle will have one-size-fits-all design that will allow all students to comfortably ride the bicycle anywhere on campus. It will also be fitted with an electric generator and lithium polymer battery so that bicycle can produce electricity, which will be used by the bicycle and the rack as their only energy source, making the system completely self-sustainable in terms of energy. It will be a “smart” rack that will be operated by microprocessors to make renting out and returning bicycle as simple as scanning Cal ID. Combining all these components together, the Berkcycle will be the ideal bike rental system for Cal students, addressing most of the problems that currently exist in using bicycle as transportation today.