BIANCHI ARCADEX PRO GRX 820 12SP

The Bianchi Arcadex Pro GRX 820 12v is a carbon gravel bike designed for true adventure: long distances, bikepacking, gravel roads, technical off-road trails, and journeys where reliability, comfort, and load capacity matter as much as performance.

This is the Bianchi model dedicated to adventure gravel, distinct from a pure racing gravel bike: here the objective is exploration, to pedal for hours and days, to tackle variable terrain with stability and control, while maintaining a modern and responsive ride.

The Arcadex Pro carbon frame is designed with an endurance geometry, engineered to provide a comfortable position over long distances without making the ride sluggish or imprecise. It remains stable under full load, yet responsive when accelerating on compact gravel or asphalt.

The fully integrated cable routing via the Acros ICR headset system creates a clean line and protects the cables from dirt and external elements, a fundamental aspect for touring and prolonged off-road use.

One of the key features is the generous tire clearance: compatible with tires up to 700x50 mm, it allows the bike to adapt to very rough terrain, large gravel, or mixed routes, increasing comfort, grip, and safety. With 45 mm tires, it's also possible to mount clip-on fenders, making it perfect for every season.

The Arcadex is truly designed for adventure thanks to the Internal Frame Storage (IFS) system, which allows tools and small items to be stored inside the frame via a dedicated case: fewer external bags, a lower center of gravity, and a more stable bike.

The Shimano GRX 820/822 1x12-speed drivetrain is specific for gravel: precise shifting even on rough surfaces, wide gear range (11-51T) to tackle steep climbs under full load and fast flat sections.

The Velomann Terbium 30 carbon wheels with a wide internal channel improve tire stability, traction, and comfort, making the bike more controllable on uneven terrain.

It is the perfect choice for those seeking a solid, modern carbon gravel touring bike, ready for bikepacking, capable of transitioning from asphalt to the most demanding gravel trails without limits.

Technical Specifications:

Frame and Fork

Frame: Arcadex PRO carbon
Brake standard: Flat mount 140/160
Bottom bracket: PressFit 86.5 x Ø41
Rear axle: Thru-axle 12x142 mm
Front derailleur: Not supported (1x drivetrain)
Derailleur hanger: SRAM UDH type
Fork: Bianchi Arcadex full carbon
Brake standard: flat mount 140/160
Front axle: Thru-axle 12x100 mm
Tire clearance: Up to ETRTO 622-50 mm
Headset: Bianchi Custom Acros ICR, integrated cable routing

Drivetrain

Shifters: Shimano GRX ST/BL-RX820
Rear derailleur: Shimano GRX RD-RX822 SGS (cassette up to 51T)
Crankset: Shimano GRX FC-RX820-1, 40T
Crank lengths:
170 mm – XS (47), SM (51)
172.5 mm – MD (55), LG (58)
175 mm – XL (61)
Bottom bracket: Shimano SM-BB72-41B, Press Fit
Chain: Shimano CN-M7100
Cassette: Shimano CS-M7100 12-speed, 11-51T, MicroSpline freehub body

Brakes

Caliper: Shimano BR-RX820 hydraulic
Discs: Shimano SM-RT70 IceTech, Centerlock, 160 mm front and rear

Wheels and Tires

Wheels: Velomann Terbium 30, carbon, 700C, tubeless ready
Rim height: 30 mm
Internal width: 25 mm
Tires: Pirelli Cinturato Gravel M Classic 45-622, tan sidewall

Cockpit

Stem: Velomann aluminum AICR, -2°
Lengths: 80 mm (47), 90 mm (51), 100 mm (55), 110 mm (58), 120 mm (61)
Handlebar: Velomann Gravel ICR, aluminum
Flare: 16°
Drop: 130 mm
Reach: 70 mm
Widths: 400 mm (47/51), 420 mm (55/58), 440 mm (61)
Bar Tape: Bianchi Hexagon, 2.5 mm thickness, black

Saddle and Seatpost

Seatpost: Velomann Carbon UD Ø27.2 mm
Lengths: 300 mm (47), 350 mm (51/55), 400 mm (58/61)
Saddle: Velomann Mitora 149 H1, central cutout, AISI rail, 250x149 mm, 230 g ±2

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.