The Crux is the lightest gravel bike in the world, combining class-leading weight with exceptional capability and performance-focused gravel geometry. Designed to climb effortlessly and glide across the roughest terrain, it delivers a fast, nimble ride that redefines what’s possible on gravel, from race day to all-day adventures.This Crux Comp build pairs that ultra-light frame with a dependable Shimano GRX 12-speed drivetrain, durable DT G540 Disc wheels, and grippy 700x40mm Pathfinder 2Bliss Ready tires. The result is a balanced, high-performance gravel bike that thrives on speed, control, and confidence wherever the road—or trail—leads.Key FeaturesOne of the lightest gravel bikes withan 825g FACT 10r frameMassive tire clearance up to 47c or 650b x 2.1" for unmatched off-road capabilityPerformance gravel geometry inspired by cyclocross for nimble, responsive handlingShimano GRX 12-speed drivetrain delivers smooth, reliable shifting in all conditionsDT G540 Disc wheels and 700x40mm Pathfinder 2Bliss Ready tires for durability andSpecificationsFramesetFrame: Crux FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc, UDH dropoutFork: S-Works FACT Carbon, 12x100mm thru-axle, flat-mount discWheelsRims: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipplesTyres: Pathfinder 700×40, Tubeless ReadyDrivetrainCrankset: Shimano GRX RX820 40tShifters: Shimano GRX ST-RX820Rear Derailleur: Shimano GRX RX822-GS, 12-speedChain: Shimano XT M8100, 12-speed w/ quick linkCassette: Shimano XT, 12-speed, 10-45tBottom Bracket: Shimano Threaded BSA BBComponentsHandlebar: Specialized Adventure Gear, 118.9mm drop x 70mm reach x 12º flareStem: 3D-forged alloy, 31.8mm, 7-degree riseGrips: Supacaz Super Sticky KushBrakes: Shimano GRX RX820Saddle: Body Geometry Power Sport, steel railsSeatpost: Roval Terra Carbon Seat Post, 20mm OffsetSpecialized Crux Sizing52cm54cm56cm58cmRider Height (cm)163 – 168168 – 175175 – 183183 – 191Rider Height (ft)5'4 – 5'65'6 – 5'95'9 – 6'06'0 – 6'3
