One designing duo is hoping to bring "sustainable, human powered phone chargers" to New York City by way of "The Charge Cycle."

David Krawczyk and Navjot Kaur want to see The Charge Cycle bikes leased by individuals, who can use the bikes throughout the city both for transportation and for charging their phones. 

When these lessees park the bikes, they become phone charging stations for the general public who can mount the parked bikes which have a mounted dynamo to generate electricity, plug in their phones to the charger and recharge their phones.

They also plan on having a phone app to alert people to the location of these sustainable phone charge stations.

They plan on offering 30 bikes for lease in May of 2013.

Krawczyk and Kaur explain the program in this video from their Kickstarter page: