I stumbled across this over at BitterCyclist.com…

The Dirty Harry movies owned the San Francisco landscape. Thank god for them for capturing a moment in San Francisco’s history. The movies are damn fun, too! Please join me in paying tribute to the movies that drive hippies and gangsters mad with contempt as we snake through a number of the movies’ locations.

This sounds really cool, it’s a great way to get people on bikes. If you are in the San Fran area and you go on this ride let us know about it. And check out the Bitter Cyclist website for a google earth map that lays out the entire ride.