Specialized Crux 5 Frameset

The Specialized Crux 5 Frameset is engineered for gravel racers who demand the fastest foundation ever created for race-winning performance. Built around Specialized's Time to Finish philosophy—a physics-based metric that optimizes total elapsed race time over real-world courses—this frameset translates more of your effort into speed across challenging gravel terrain. When the goal is to cross the line first, no gravel frameset gives you a faster platform to build upon. Constructed with FACT 10r carbon, the Crux 5 frame represents one of the lightest gravel frames in the world while maintaining the stiffness and compliance targets proven on the universally loved Crux 4. The revolutionary Flow State Design emerged from engineers studying frame behavior under load, discovering that frames weren't just 'breathing' under stress—they were communicating. By optimizing tube shapes instead of adding material, Specialized eliminated unnecessary carbon layers, resulting in a lighter frame with better ride quality and improved structural integrity. Every tube has been precisely sculpted for speed at elite gravel races, drawing directly from Tarmac SL8 learnings to achieve aerodynamic gains without compromising weight. The FACT 12r carbon fork pairs with the frame to deliver unparalleled handling precision and responsiveness. Rider-first engineering ensures that every size from 49–61cm receives a specific layup based on performance metrics unique to that size, delivering consistent stiffness, compliance, and handling regardless of rider height. The frameset accommodates up to 55mm tires without compromise, enabling athletes to run the right tire for any course while maintaining full aerodynamic efficiency. Perfect for competitive gravel builders seeking the lightest, most aerodynamically optimized frameset available, the Crux 5 delivers progressive geometry with balanced handling, intuitive steering response, and the proven engineering that makes it race-ready from day one. Key Features Frame - FACT 10r Carbon with Flow State Design and Rider-First Engineering Fork - FACT 12r Carbon with Aerodynamic Optimization Tire Clearance - 55mm / 2.2" with Zero Compromises