JFK Airport offers a row of (free) spots for motorcycles beside the Lefferts Boulevard AirTrain station at the long-term parking lot. Two of the spots abut a sewer grate laden with chains and locks. Were these chains left here by regular parkers to be used again in the future? Attaching a chain to the grate seems like it would be something of a hassle — dipping one end of the chain down into an opening and then fishing it back out through a different opening — so it might make sense for bikers to just leave their chains in place for next time. And these idle chains also provide other bikers with something easy to thread their own chains through, as seen above.