Despite ominous weather predictions, the fourth annual World Naked Bike Ride went off without a hitch yesterday in Williamsburg. There was the usual assortment of partially mostly-naked riders, with an added emphasis on anti-NYPD sentiments such as, "NYPD Hands Off" and "Stop And Frisk This." Their trip ended at the BP on Lafayette Street, where riders briefly blocked traffic chanting, "More Ass, Less Gas," to the bemusement of some and annoyance of others: "I don't see how this helps," one man remarked to his wife as they sipped wine. Click through for some SFW pics.

Reporting by Max Rosenbaum