The Bianchi Specialissima Black 57 Ultegra Di2 is an ultralight racing frameset with a complete Shimano Ultegra Di2 electronic groupset, engineered for climbing efficiency, precise handling, and a smooth ride on varied road surfaces.

• Full carbon Specialissima R1 frame weighing approximately 700 g, optimized for stiffness-to-weight and climbing performance

• Shimano Ultegra Di2 R8100 12-speed electronic drivetrain for crisp, reliable shifting under load

• Shimano Ultegra R8170 hydraulic disc brakes with 160 mm rotors for consistent, all-weather stopping power

• Full-carbon Reparto Corse fork with 12 × 100 mm thru-axle and flat-mount disc caliper feature for precise steering and brake integration

• PressFit 86.5 × 41 mm bottom bracket shell for direct power transfer and broad crank compatibility (Ultegra R8100 crankset 52 × 36 T)

• 1 1/2"–1 1/2" tapered head tube compatible with integrated headset systems for responsive handling

• Thru-axle spacing: 12 × 100 mm front and 12 × 142 mm rear for enhanced stiffness, brake performance, and wheel security

• Internal cable and Di2 wiring routing maintain a clean aerodynamic profile and easy maintenance

• Full-carbon aero Reparto Corse seatpost with reversible clamp (±35 mm offset) and 27.2 mm diameter for compliance and comfort under load

• Reparto Corse integrated cockpit (alloy stem and carbon handlebars) designed for aero efficiency and ergonomic positioning

• Fulcrum Racing 400 DB 622 × 19 mm wheels wrapped in max 28 C tires deliver a balance of low rolling resistance and traction