New York’s “The 6 Train” is the shortest route available for free-riding around NYC. Named for the most direct subway route between Grand Central Station and Central Park, this route covers the “middle loop” of Central Park’s three ground-level loop sections.
While this route is about as “flat” as NYC routes can get, it’s still best described as a rolling, curvy course with essentially no flat sections. You may be busy powering up the punchy hills, but take the time to smell the hot dogs and enjoy the fall colors. You’re in New York, baby! If you can make it here, you can make it anywhere!