Let's not forget that as mountain bikers, we're often hurtling downhill like a two-wheeled wrecking ball, flying over jarring roots and rocks on a skinny strip of dirt. As disastrous as this ordeal sounds for non-riders, the sensation of speed is just part of the fun. For these blistering downhill runs and technical descents where falling isn't pretty, it pays to be wearing the bomber durability and longer coverage of the Troy Lee Designs Sprint Short.