Four cross is a sport in which riders compete either on separate tracks, as in Dual Slalom, or on a short slalom track, as in 4X. Most bikes used are light hard tails, although the last World Cup was actually won on a full suspension bike. The tracks have dirt jumps, berms, and gaps. Professionals in gravity mountain biking tend to concentrate either on downhill mountain biking or 4X/dual slalom because they are very different. However, some riders, such asCedric Gracia, still do 4X and DH, although that is becoming more rare as 4X takes on its own identity.