2025 Bianchi Arcadex PRO GRX 820

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Frameset

Frame

• Arcadex PRO Disc Brake Specification: Flat Mount 140/160
• Bottom Bracket Standard: PressFit 86.5 X Ø41
• Rear Axle: thru12 OLD : 142 mm
• Front Derailleur: Non-Compatible
• Rear Derailleur: SRAM UDH Hanger type

Fork

• Model: Bianchi Arcadex Fork
• Disc Brake Specification: Flat Mount 140/160
• Front Axle: thru12 OLD (Over-Locknut-Dimension): 100 mm
• Tire Clearance: ETRTO 622-42mm
• Steer Tube Diameter: 1 1/8"
• Material: Epoxy - SM Carbon Fiber Composite

Headset

• Model: Bianchi Custom Acros ICR (Internal Cable Routing)
• Spacers: 5 mm x1, 10 mm x3
• Headtube Cover: Bianchi Custom
• Compression Ring: 1.125 Inch
• Top Bearing: Angular contact Bearing 42x52x7 + seal
• Bottom Bearing: Angular contact Bearing 40x52x7 + seal

Drivetrain

Shifters

• Model: Shimano GRX 820 ST/BL-RX820

Rear Derailleur

• Model: Shimano GRX 822 RD-RX822, SGS
• Maximum Cassette Sprocket: 51T

Crankset

• Model: Shimano GRX 820 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

• Model: Shimano SM-BB72-41B, press fit

Chain

• Model: Shimano CN-M7100

Cassette

• Model: Shimano CS-M7100-12 speed, 11-51T
• Driver Body Interface: MicroSpline

Brakes

• Model: Shimano Hydraulic Brake, BR-RX820

Rotor

• Model: Shimano SM-RT70 IceTech
• Hub Interface: Centerlock
• Rotor Diameter: 160 mm (front & rear)

Wheels

• Model: Shimano SM-RT70 IceTech
• Hub Interface: Centerlock
• Rotor Diameter: 160 mm (front & rear)

Tire

• Model: Pirelli Cinturato™ GRAVEL M Classic
• Size: 45-622
• Sidewall: Tan

Cockpit

Stem

• Model: Velomann AICR Alloy
• Rise: -2°
• Steerer Diameter: 1-1/8" (28.6 mm)
• Handlebar Interface Diameter: 1-1/4" (31.8 mm)
• Stem Lengths:
  • 80 mm: XS (47)
  • 90 mm: SM (51)
  • 100 mm: MD (55)
  • 110 mm: LG (58)
  • 120 mm: XL (61)

Handlebar

• Model: Velomann Gravel ICR Alloy
• Flare: 16°
• Drop: 130 mm
• Reach: 70 mm
• Interface Diameter: 1-1/4" (31.8 mm)
• Handlebar Widths:
  • 400 mm: XS (47), SM (51)
  • 420 mm: MD (55), LG (58)
  • 440 mm: XL (61)

Grips / Extensions

• Model: Bianchi Hexagon tape
• Thickness: 2.5 mm
• Color: Full black

Seatpost

• Model: Velomann Carbon UD
• Outer Diameter (O.D.): Ø27.2 mm
• Seatpost Lengths:
  • 300 mm: XS (47)
  • 350 mm: SM (51), MD (55), LG (58), XL (61)

Saddle

• Model: Velomann MITORA 149 H1
• Cover: Soft touch
• Padding: Foam
• Shell: Nylon
• Rails: Carbon AISI Steel