When it comes to cyclists, the city’s policy is very bipolar: One one hand its needlessly cracks down on them (or doesn’t investigate their deaths) and on the other it encourages them to peddle more. Next month, Pier 54, a newly resurfaced stretch of asphalt off the Hudson River bike path just below West 14th Street, will open to the public as a safe zone where beginners can feel comfortable learning how to ride. Bike New York is even offerring classes for kids and if need be, adults too. This is good news for concerned parents and those of us who already have to navigate a clogged minefield of baby strollers, pedestrians, and slow-moving newbie riders.