I grew up in Fair Lawn, the next town over. If you're into shortcuts and paths and parking lots, here's an 8.5-mile loop you can combine with the Rochelle Park/Saddle Brook bike path, starting at the Saddle river Road trailhead around the corner from where I grew up. I rode a lo of these streets growing up.

http://www.bikely.com/maps/bike-path/Fair-lawn-loop

The bike path goes all the way from near Rochelle Park to the Riddgewood duck pond.

FYI, Some of these shortcuts and paths are from memory, and decades ago.