>>1261728Folding bicycle would be the cheapest. Get some solid tires so you never had to worry about flats or equipment to repair or pump up a flat. You can use transportation like Greyhound buses for a good bit of stuff. With a bicycle that folds, you can stow it on buses and trains. You'd only need to bike between a few destinations. Here's a map of their lines around the USA:
http://extranet.greyhound.com/Revsup/schedules/sa-50.pdfLarge cities would be easy to traverse using their public transportation systems. You can still hitch hike with a folding bicycle too.
>>1261729>>1261743>5 weeks on the road 1200+ kmThat'd be like 17 weeks to travel from Tampa Florida to Los Angles California, strictly by bicycle. Can't get to Hawaii on a bike tough. I bet OP can't even afford the plane ticket. lol