Bicycle Archive · Specification report

2024 Bianchi Arcadex PRO GRX 820

Velopedia Archive ID 900001540

Overview

Model year	2024
Brand	Bianchi
Model	Arcadex PRO GRX 820
Bicycle type	Cyclocross/Gravel
Archive ID	900001540
Original MSRP	$4,483.00
Colors	AF - CK16 / Green Water; AW - Forest Green / Graphite
Sizes	XS; SM; MD; LG; XL

Frameset

Frame construction	Arcadex PRO Disc Brake Specification: Flat Mount 140/160 Bottom Braket Standard: PressFit 86.5 X Ø41 Rear Axle: thru12 OLD (Over-Locknut-Dimension): 142 mm Front Derailleur:Non Compatible Rear Derailleur: SRAM UDH Hanger type Max Chainring Compatibility:
Fork	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
Fork material	Carbon Fiber

Drivetrain

Shifters	Shimano GRX 820 ST/BL-RX820
Rear derailleur	Shimano GRX 822 RD-RX822, SGS Maximum Cassette Sprocket 51T
Crankset	Shimano GRX 820 FC-RX820-1, 40T Crank Length: 170mm-XS(47)-SM(51), 172.5mm-MD(55)-LG(58), 175mm-XL(61)
Bottom bracket	Shimano SM-BB72-41B, press fit
Cassette	Shimano CS-M7100-12 speed, 11-51T Driver body Interface: MicroSpline
Chain	Shimano CN-M7100

Brakes

Brakes	Shimano Hydraulic Brake, BR-RX820; Rotors: Shimano SM-RT70 IceTech Hub Interface: Centerlock Rotor Diameter: 160 mm (front&Rear)

Cockpit & contact points

Headset	Bianchi Custom Acros ICR (Internal Cable Rounting) Spacers:5 mm x1, 10mm x3 Headtube Cover: Bianchi Costum Compresion Ring: 1.125 Inch Top Bearing: Angular contact Bearing 42x52x7 + seal Bottom Bearing: Angular contact Bearing 40x52x7 + seal
Handlebar	Velomann Gravel ICR Alloy Flare: 16° Drop: 130mm Reach 70mm Interface Diameter: 1 1/4″” (31.8mm) HandleBar Widths: 400 – SX(47) SM(51), 420 – MD(55) LG(58), 440 -XL(61)
Handlebar extensions	Bianchi Hexagon tape 2.5mm thickness, Full black
Stem	Velomann AICR Alloy Rise: -2° Steerer Diameter: 1-1/8″” (28.6mm) HB interface Diameter: 1-1/4″” (31.8mm) Stem Lengths: 80mm (XS-47) (SM-51), 90mm(MD-55), 100mm(LG-58),110mm(XL-61)
Saddle	Velomann MITORA 149 H1 cover: soft touch, padding: foam, shell: nylon carbon rails: Aisi Steel lenght: 250mm width: 149mm weight: 230g ± 2
Seatpost	Velomann Carbon UD SeatPost O.D: Ø27.2 mm Seatpost lengths: 300mm-SX(47), 350mm- SM(51) MD(55), LG(58) XL(61)

Wheels & tires

Wheels	Velomann Terbium clincher and tubeless ready Rim Diameter: 700C Material: Carbon Rim Height: 30 mm Inner Wigth Channel: 25 mm
Front tire	Pirelli Cinturato™ GRAVEL M Classic, 45-622 tan sidewall
Rear tire	Pirelli Cinturato™ GRAVEL M Classic, 45-622 tan sidewall
Wheel size	700c

Geometry · XS

Seat tube	410 mm
Effective top tube	527 mm
Head tube	90 mm
Head-tube angle	70.5°
Seat-tube angle	74.5°
Chainstay / rear center	430 mm
Wheelbase	1020 mm
Bottom-bracket drop	75 mm
Reach	376 mm
Stack	544 mm
Fork offset / rake	51 mm
Front center	601 mm
Fork length / axle-to-crown	425 mm

Geometry · SM

Seat tube	448 mm
Effective top tube	545 mm
Head tube	110 mm
Head-tube angle	70.5°
Seat-tube angle	74°
Chainstay / rear center	430 mm
Wheelbase	1034 mm
Bottom-bracket drop	75 mm
Reach	383 mm
Stack	563 mm
Fork offset / rake	51 mm
Front center	615 mm
Fork length / axle-to-crown	425 mm

Geometry · MD

Seat tube	485 mm
Effective top tube	564 mm
Head tube	130 mm
Head-tube angle	71°
Seat-tube angle	73.5°
Chainstay / rear center	430 mm
Wheelbase	1044 mm
Bottom-bracket drop	75 mm
Reach	391 mm
Stack	584 mm
Fork offset / rake	51 mm
Front center	625 mm
Fork length / axle-to-crown	425 mm

Geometry · LG

Seat tube	515 mm
Effective top tube	583 mm
Head tube	155 mm
Head-tube angle	71.5°
Seat-tube angle	73.5°
Chainstay / rear center	430 mm
Wheelbase	1059 mm
Bottom-bracket drop	75 mm
Reach	402 mm
Stack	610 mm
Fork offset / rake	51 mm
Front center	639 mm
Fork length / axle-to-crown	425 mm

Geometry · XL

Seat tube	550 mm
Effective top tube	605 mm
Head tube	185 mm
Head-tube angle	71.5°
Seat-tube angle	73°
Chainstay / rear center	432 mm
Wheelbase	1077 mm
Bottom-bracket drop	75 mm
Reach	410 mm
Stack	638 mm
Fork offset / rake	51 mm
Front center	656 mm
Fork length / axle-to-crown	425 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 21, 2026.