The Bianchi Arcadex Comp GRX 610 1x12sp is a striking departure from traditional gravel design, blending Bianchi’s high-speed racing DNA with a rugged, adventure-ready soul. For 2026, the Arcadex has been completely reimagined with a more sculpted, aerodynamic carbon frame that doesn't just look fast—it’s built for the "untapped wilderness." The most significant upgrade for this generation is the IFS (Internal Frame Storage) module in the downtube, allowing you to stash essential tools and snacks cleanly out of sight.
This "Comp" build is the workhorse of the lineup, utilizing the Shimano GRX 610 1x12 mechanical groupset. It pairs a 40T front chainring with a massive 11-51T cassette, giving you a "mullet" style gear range capable of winching up the steepest fire roads while maintaining precise, reliable shifting. The Arcadex Comp remains one of the most visually distinct and capable gravel bikes on the market today.
Frameset & Geometry
Frame: Arcadex Carbon Comp, Internal Cable Routing (ICR), 12x142mm Thru-Axle, SRAM UDH Hanger compatible
Fork: Full Carbon Disc, 1 1/8" Steerer, Flat Mount, 12x100mm Thru-Axle (Includes 3-pack anything cage mounts)
Handlebar: Velomann Gravel ICR Alloy, 16° Flare, 130mm Drop
Stem: Velomann AICR Alloy (Integrated cable routing)
Seatpost: Velomann Carbon UD, 27.2mm (Rigid)
Saddle: Velomann MITORA 149 H2 (Steel rails, carbon-reinforced shell)
Drivetrain & Brakes
Shifters: Shimano GRX 610 ST-RX610, 1x12-Speed
Rear Derailleur: Shimano GRX 822 RD-RX822, SGS (Compatible up to 51T)
Crankset: Shimano GRX 610 FC-RX610-1, 40T
Bottom Bracket: Shimano SM-BB72-41B, Pressfit 86.5mm
Cassette: Shimano CS-M7100-12, 11-51T (MicroSpline interface)
Chain: Shimano CN-M7100
Brakes: Shimano BR-RX400 Hydraulic Disc
Rotors: Shimano SM-RT70 IceTech, 160mm (Front & Rear)
Wheels & Tires
Wheelset: Fulcrum Rapid Red 900, 2-Way Fit Ready (Alloy, 22mm internal width)
Hubs: Fulcrum, CenterLock, 12mm Thru-Axle
Tires: Pirelli Cinturato™ GRAVEL M Classic, 700x45c (Tan sidewall)
Max Tire Clearance: 700x50c (or 700x45c with fenders)
Key Technologies
IFS (Internal Frame Storage): A protected compartment inside the downtube for multi-tools, CO2, or spares, keeping the frame's exterior clean for bags.
Integrated Cockpit: Cables are routed semi-internally through the Velomann stem and Acros headset, protecting them from the elements and clearing space for handlebar bags.
Adventure Mounts: Features standard bottle mounts, an under-downtube mount, top-tube "bento" mounts, and 3-pack mounts on the fork for maximum cargo capacity.