Southwest of Frankfurt and east of Saarbrucken, the Rodalben area has an excellent looping trail network for mountain bike rides of up to 20 miles. To reach the trailhead, follow A62 towards Pirmasens and exit at Rodalben. Once in Rodalben, use the parking area on the right just past the gas station. Ride back on the road for a couple hundred meters and look for the trail on the right heading up.
Overall, Rodalben is the 8th most popular mountain bike trail of all 15 mountain biking rides in Germany.