There are a lot of cyclists in San Francisco. Many ride road or mountain bikes, something with gears, but you’ll often see bike messengers riding fixed gear bikes or single speed up and down Market St, weaving in and out of traffic rather impressively. I made sure that my car during my first drive from Rochester to San Francisco had enough room for my bike, a Trek Earl I purchased a few years back. I knew that I wouldn’t be driving a car much in the city, what with parking, (or lack thereof), traffic, the number of pedestrians, etc. A bicycle just seemed like a good idea!