Velopedia Bicycle Archive

2024 Bianchi Arcadex PRO GRX 820

Original manufacturer specifications including 700c wheels, geometry for 5 published sizes.

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What Velopedia knows

Model year
2024
Category
Gravel & Cyclocross
Original MSRP
$4,483.00
Sizes
XS, S, M, L, XL
Colors
AF - CK16 / Green Water, AW - Forest Green / Graphite
Geometry
5 manufacturer sizes · Geometry context
Record coverage
20 preserved details · 2 archived images · original MSRP · preserved geometry
Archive ID
900001540
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Manufacturer catalog

Published sizes and colors

5 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

XSSMLXL

Published colors

AF - CK16 / Green WaterAW - Forest Green / Graphite

Frameset

Frame ConstructionArcadex 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:
ForkBianchi 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 MaterialCarbon Fiber

Drivetrain

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

Brakes

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

Cockpit & Contact Points

HeadsetBianchi 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
HandlebarVelomann 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 ExtensionsBianchi Hexagon tape 2.5mm thickness, Full black
StemVelomann 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)
SaddleVelomann MITORA 149 H1 cover: soft touch, padding: foam, shell: nylon carbon rails: Aisi Steel lenght: 250mm width: 149mm weight: 230g ± 2
SeatpostVelomann Carbon UD SeatPost O.D: Ø27.2 mm Seatpost lengths: 300mm-SX(47), 350mm- SM(51) MD(55), LG(58) XL(61)

Wheels & Tires

WheelsVelomann Terbium clincher and tubeless ready Rim Diameter: 700C Material: Carbon Rim Height: 30 mm Inner Wigth Channel: 25 mm
Front TirePirelli Cinturato™ GRAVEL M Classic, 45-622 tan sidewall
Rear TirePirelli Cinturato™ GRAVEL M Classic, 45-622 tan sidewall
Wheel Size700c

Size-specific frame data

Geometry

5 sizes · 13 measurements

Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.

MeasurementXSSMMDLGXL
Seat tube410 mm448 mm485 mm515 mm550 mm
Effective top tube527 mm545 mm564 mm583 mm605 mm
Head tube90 mm110 mm130 mm155 mm185 mm
Head-tube angle70.5°70.5°71°71.5°71.5°
Seat-tube angle74.5°74°73.5°73.5°73°
Chainstay / rear center430 mm430 mm430 mm430 mm432 mm
Wheelbase1020 mm1034 mm1044 mm1059 mm1077 mm
Bottom-bracket drop75 mm75 mm75 mm75 mm75 mm
Reach376 mm383 mm391 mm402 mm410 mm
Stack544 mm563 mm584 mm610 mm638 mm
Fork offset / rake51 mm51 mm51 mm51 mm51 mm
Front center601 mm615 mm625 mm639 mm656 mm
Fork length / axle-to-crown425 mm425 mm425 mm425 mm425 mm

Geometry source: Bianchi first-party coded geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.

Geometry tools

Analyze a published size

Choose a size

XS geometry

Archive context: The head angle of 70.5° sits somewhat steeper than typical. The seat angle of 74.5° sits somewhat steeper than typical. Its reach of 376 mm sits close to the middle of the group.

Compared with 37 distinct cyclocross/gravel geometries in the XS-equivalent size cohort from model years 2022–2026 in the Velopedia archive.
Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze XS geometry

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
Shimano CN-M7100 Exact archived model
CassetteExact archived part
Shimano CS-M7100-12 speed, 11-51T Driver body Interface: MicroSpline Exact archived model
Front tireMatching fit standard
Pirelli Cinturato™ GRAVEL M Classic, 45-622 tan sidewall Named tire and published size
More qualified parts (5)
Brake padsExact archived part
Shimano Hydraulic Brake, BR-RX820 Brake model identified — verify pad shape
Bottom bracketExact archived part
Shimano SM-BB72-41B, press fit Named archived component — verify dimensions
CranksetExact archived part
Shimano GRX 820 FC-RX820-1, 40T Crank Length: 170mm-XS(47)-SM(51), 172.5mm-MD(55)-LG(58), 175mm-XL(61) Exact archived model
Rear derailleurExact archived part
Shimano GRX 822 RD-RX822, SGS Maximum Cassette Sprocket 51T Interpreted as Shimano GRX · 12-speed Exact archived model
SeatpostMatching fit standard
27.2 mm seatpost Published diameter — verify length and setback

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

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Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameInspect the complete frame and fork in bright light for cracks, dents, distortion, corrosion, impact marks, suspicious paint differences or signs of repair. Check the head tube, bottom-bracket area, dropouts, joints and clamped surfaces especially closely.Inspect the frame and fork →
  • BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 12-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
  • Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
0 of 20 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2024 Bianchi Arcadex PRO GRX 820 · Cyclocross/Gravel · Published sizes: XS, S, M, L, XL

Archived: Frame: 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 · Carbon Fiber

Archived: 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

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

Archived: Wheel size: 700c · 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

Controls and contact points

Archived: 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) · Seatpost: Velomann Carbon UD SeatPost O.D: Ø27.2 mm Seatpost lengths: 300mm-SX(47), 350mm- SM(51) MD(55), LG(58) 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

Before and during the test ride

Follow the full used-bike inspection order →

Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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