This is a casual ride along the Herring Run. The trail includes paved, dirt, and some rocks. Mountain bikes or cyclocross bikes will work - a road bike will not make it. Beginner mountain bikers should enjoy it. Good cyclocross course, actually, with some portage involved. It may be as often as weekly - we'll see.
Just so you know, this does include some sections of dirt trails with limbs and roots to navigate as well as a couple of decent inclines and some fun downhill opportunities. In this case, wider is better (tire-wise). Our typical loop is about 10 miles. And an extra inner-tube is a good idea. So come out and get your bike a little dirty.