This is a really cool idea! Biking is also good for the environment and for physical fitness. I hope you can make this work! Maybe you can seek a partnership/funding from an existing bike sharing program (I mean those colorful city bikes that are available in big cities.)
Allee, very nice idea. I love gardening and I volunteer in a local community garden. If you get this idea up and running, I'm sure you'll find locals who also want to volunteer their time to help the community.