Because the sports are similar in many ways, off-road dirt biking is a popular crossover for mountain bikers. It's my favorite hobby, by far. Still high on adrenaline and a sense of accomplishment, I equated my first off-road moto racing experience to riding two hours non-stop on a downhill bike. With terrain coming at you that fast for that long, it's an absolute two-wheeled rush. Not only did it feel similar to riding DH, but the demands on my body were comparable. Two hours of rock and whoop smashing can put a toll on you physically, and for many it can be downright difficult to just hang...