In addition to raising money that supplied 100 bicycles for students in Zambia, the Chicago teens traveled to Zambia in June to deliver the bikes in person.

We spoke with Caleb, now 18-years-old and a freshman in college, about his experience in Africa.

"The most amazing thing about going to Africa is that, as 'wealthy' Americans, we have a tendency to have a 'savior complex' and sort of feel as though it's our responsibility to help everyone. But the thing about actually traveling to Africa is you learn that not only are the people motivated to help themselves, they have the energy to do it as well.

They are 90% there, they just need a little boost...what most of them are lacking is money, which is where we can help. That's what struck me most and it immediately destroyed my complex," Caleb explained.

"The benefit there was that we were able to create relationships with the people we were helping," he added.

Caleb's college has a study abroad program in Zambia and he plans to return to meet up with his new friends soon.

Learn more at www.worldbicyclerelief.org/. Photo: Caleb with a family receiving one of the bikes.