The 27 year-old is making the 2,300 mile trip in about a month. His plan has been to ride 80 miles or more a day and he has been successful so far.
"I first got the idea a year ago," he said. "And this past winter really started thinking about it seriously."
So serious, in fact, that he contacted the Lance Armstrong Foundation and set up a grassroots website. All the money he raised -- about $2,384 so far -- will be given to the foundation for cancer research.
He chose the Lance Armstrong Foundation for its ties to cycling and because he lost his grandparents to the disease.
"As I was learning to ride, I spent more and more time in the saddle. I just loved it and took to it. Every mile I rode I wanted to ride more."
Eisenberg says he prepared for the challenge by riding every day since the snow melted and mixing in running and lifting weights. He is riding a lightweight carbon bike but is pulling a trailer with camping gear and enough pasta to last most of his trip. The total -- weight is about 80 pounds.
He left Telluride for Fort Collins on Aug. 1. There he met a friend who is riding with him through Lincoln, Neb. to Iowa and on to Illinois. He will pass through Greencastle on his way Cincinnati and then head north to New York.