Cycling is the cheapest form of transportation available to me. However, the cycling hobby/obsession has cost me a bundle. I am thousands in the red if I compare my discretionary spending on cycling recreation to what I saved in gas and automobile costs. However, since much of my commuting has been transformed into recreation, my commuting costs have technically plummeted.

But it could save you money. My co-worker commuted 28 miles round trip, seven days a week (yeah, he works way harder than I do) last year from May through october. On a walmart bike that didn't fit him. Something like over 800 miles a month. I figure he saved about $1200 or more last year. Of course, this year he wants a road bike that fits him, and he is a small person, hard to find a frame in his size. He'll end up spending about a thousand on the new bike, but still be ahead.