Bianchi Impulso Pro GRX 820 Disc 2x12sp

The Bianchi Impulso Pro GRX 820 is a carbon gravel bike designed for those seeking high performance, lightness, and great versatility on every type of terrain. It is a model oriented towards sport use and gravel competitions, yet simultaneously suitable for long adventures on unpaved roads, damaged asphalt, and mixed routes.

The Impulso carbon frame is designed to offer a perfect balance between stiffness, responsiveness, and comfort over long distances. The geometry is engineered to ensure stability and control even on fast gravel sections, while the fully integrated cable routing improves aerodynamics, protects the cables, and maintains a clean aesthetic. Compatibility with tires up to 42 mm allows for increased grip, comfort, and safety on rougher terrain.

The Shimano GRX 820 12-speed transmission with a 2x12 configuration ensures precise shifting and a very wide gear range, ideal for tackling steep climbs, technical sections, and fast stretches on asphalt. The Shimano GRX hydraulic disc brakes offer power and modulation in all conditions, guaranteeing control even on wet or challenging surfaces.

The Velomann Terbium carbon wheels with a 30 mm profile and wide internal channel improve rolling smoothness, stability, and durability on gravel, while the Pirelli Cinturato Gravel H 40 mm tires ensure traction, comfort, and reliability on compact and mixed terrain. The gravel cockpit with 16° flare improves control on descents and in technical sections.

It is the ideal choice for those seeking a high-performance, lightweight carbon gravel bike ready for competition, without sacrificing comfort and versatility over long distances.

Technical Specifications:

Frame and Fork
Frame: Bianchi Impulso carbon, flat mount disc brakes
Bottom Bracket: PressFit 86.5 x 41
Rear Thru Axle: 12 x 142 mm
Derailleur Hanger Standard: SRAM UDH
Tire Compatibility: up to 42 mm
Fork: Full carbon integrated, flat mount, 12 x 100 mm thru axle
Headset: Bianchi Custom Acros ICR with integrated cable routing

Drivetrain
Shifters: Shimano GRX ST-RX820, 12-speed
Rear Derailleur: Shimano GRX RD-RX820, max 36T
Front Derailleur: Shimano GRX FD-RX820
Crankset: Shimano GRX FC-RX820, 48x31T
Crank Arm Lengths:
• 170 mm (XS 47 – S 51)
• 172.5 mm (M 55 – L 58)
• 175 mm (XL 61)
Bottom Bracket: Shimano SM-BB72-41B PressFit
Chain: Shimano CN-M7100
Cassette: Shimano CS-HG710, 12-speed, 11-36T

Brakes
Brakes: Shimano GRX BR-RX820 hydraulic disc
Rotors: Shimano SM-RT70 IceTech, 160 mm front and rear

Wheels and Tires
Wheels: Velomann Terbium, carbon, tubeless ready
Diameter: 700C
Rim Height: 30 mm
Internal Width: 25 mm
Tires: Pirelli Cinturato Gravel H 700x40, tan sidewall

Cockpit
Stem: Velomann aluminum AICR, -2° angle
Lengths:
• 80 mm (XS 47)
• 90 mm (S 51)
• 100 mm (M 55)
• 110 mm (L 58)
• 120 mm (XL 61)
Handlebar: Velomann Gravel aluminum, 16° flare, 70 mm reach, 130 mm drop
Widths:
• 400 mm (XS 47 – S 51)
• 420 mm (M 55 – L 58)
• 440 mm (XL 61)
Bar Tape: La Spirale Ribbon cork

Saddle and Seatpost
Seatpost: Bianchi Custom D-shape carbon, 20 mm offset
Lengths:
• 300 mm (XS 47)
• 350 mm (S 51 – M 55)
• 380 mm (L 58 – XL 61)
Saddle: Velomann Mitora 149 Hyper, 250 x 149 mm, carbon rail

Bianchi reserves the right to modify specifications and components based on availability, without prior notice.

Suggestion: to receive the bike ready to use, you can add the “Bike assembled and adjusted by Cicli Drigani technicians” option to your cart for 59€. With this service, the bike will arrive assembled, adjusted, and ready to ride. Without this option, the bike will be delivered in the manufacturer's original packaging and will require some technical operations before it can be used safely.