At the pinnacle of the XC game resides Specialized's S-Works Stumpjumper 29er Frameset. The frame is constructed from S-Works FACT-carbon, which absolutely flies uphill and boasts race-proven geometry for the trip back down, while the rear features a hardtail design with razor thin seatstays that blend maximum pedaling efficiency with added compliance. Enhancing the incredible frame is a Brain-controlled, 95mm-travel RockShox RS-1 fork that sports an inverted design and offers superior stiffness, while behaving with more sensitivity to small bumps and more control over larger hits. The Brain technology offers premium efficiency on smooth and rowdy sections alike. Key frame details include a PF30 BB, a tapered head tube, internal cable routing and a 142mm rear dropouts. Is this one of the fastest frames on Earth? Specialized Factory riders think so, and they back it up by winning. A lot.