Sorry to resurrect a dead thread, but I'm from Bergen County, too. Rutherford, though. I've done the saddle river trail thing once or twice. I was hoping for some suggestions for other places/groups to ride with, too. I found this:
http://btcnj.com/ but they don't seem to do a lot of non-A/A* rides in my area. I'm definitely not a 20mph rider. Anyone know of anything more fun/casual?