Over the last ten years (or more) just about every major city in the U.S. has added bike-carrying capacity to their buses. While cities like Chicago, Las Vegas, Kansas City, Seattle, Philadelphia, and San Francisco can boast 100% of their bus fleet sporting bike racks, NYC comes in at 0%.
Of course, there are reasonable assumptions one can make why NYC has not tried out some program. First and foremost: the NYC MTA subway system already allows bikes 24 hours a day. It's an excellent benefit for sure, but there are many regions of the five boroughs that are not easily within reach of a train. If we want to encourage multi-modalism, we need seriously think about that. Then there is a barrage of others: cyclists will be too slow to load, bikes might fall off the racks, cost, maintenance, etc, but after viewing our Streetfilm you'll see there really isn't a valid excuse not to.