Velopedia Bicycle Archive

2004 Bianchi Eros

Original manufacturer specifications including Road Mix drivetrain, 700c wheels, geometry for 1 published size.

Share owner experience

Selling this bike? Create a shareable bike record

What Velopedia knows

Model year
2004
Category
Road
Original MSRP
$1,099.99
Sizes
49cm, 51cm, 53cm, 55cm, 57cm, 59cm, 61cm, 63cm
Colors
New Celeste, Titanium
Geometry
Legacy reference · Geometry context
Record coverage
32 preserved details · archived image · original MSRP · preserved geometry
Archive ID
92570
Model history 12 other years

Manufacturer catalog

Published sizes and colors

8 sizes · 2 colors

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

Published sizes

49cm51cm53cm55cm57cm59cm61cm63cm

Published colors

New CelesteTitanium

Frameset

Frame ConstructionTIG-welded
Frame MaterialChromoly, double-butted
ForkBianchi
Fork MaterialCarbon fiber composite w/chromoly steerer, unicrown crown
Rear ShockN/A

Drivetrain

Component GroupRoad Mix
ShiftersCampagnolo Mirage Ergo
Front DerailleurCampagnolo Mirage, clamp-on/28.6mm
Rear DerailleurCampagnolo Mirage
CranksetCampagnolo Mirage Triple, 30/42/52 teeth
Bottom BracketCampagnolo Veloce, 111mm spindle
BB Shell Width68mm English
Rear Cogs9-speed, 13 - 26 teeth
ChainKMC, 1/2 x 3/32"
PedalsVictor VP-109

Brakes

BrakesCampagnolo Mirage dual pivot brakes, Campagnolo Mirage Ergo levers

Cockpit & Contact Points

Headset1" VP
HandlebarDeda Elementi Piega
Handlebar ExtensionsNot included
StemDeda Elementi Linx
SaddleSelle Italia Onda Sudo
SeatpostBianchi aluminum, 27.2mm diameter

Wheels & Tires

HubsCampagnolo Mirage
RimsMavic CXP 22, 32-hole
SpokesStainless steel, 14/15ga. (2.0/1.8mm) double-butted
Spoke NipplesBrass nipples
Front Tire700 x 25c Continental Sport 1000
Wheel Size700c wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

Historical model-level geometry recovered from Velopedia’s original archive database. The source does not identify which listed frame size this reference describes, so fit interpretation is intentionally limited and no size-normalized Archive Context is generated.

MeasurementLegacy reference
Top tube560 mm
Head-tube angle73°
Seat-tube angle74°
Chainstay / rear center418 mm
Wheelbase1005 mm
Fork offset / rake42 mm

Geometry source: Historical archive database — model-level reference geometry. The historical source provides one model-level geometry set and does not identify the corresponding frame size.

Geometry tools

Explore this historical geometry

Model-level historical reference

Period context: At 73°, the head angle sits close to the middle of the group among road geometries represented in Velopedia for this period. Its 74° seat angle is somewhat steeper than typical among the same-period road references.

Compared with 293 distinct legacy road geometries from model years 2002–2006. Only angular measurements are used because the historical reference frame size is unidentified.
See it in periodOpen an immediate comparison with preserved 2004 road geometries. The source frame size remains unidentified.
See its 2004 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
Front tireMatching fit standard
700 x 25c Continental Sport 1000 Named tire and published size
Bottom bracketQualified part search
Campagnolo Veloce, 111mm spindle Named archived component — verify dimensions
SaddleQualified part search
Selle Italia Onda Sudo Named archived component — verify exact version
More qualified parts (6)
CranksetQualified part search
Campagnolo Mirage Triple, 30/42/52 teeth Named archived component — verify exact version
HandlebarQualified part search
Deda Elementi Piega Named archived component — verify dimensions
StemQualified part search
Deda Elementi Linx Named archived component — verify dimensions
SeatpostMatching fit standard
27.2 mm seatpost Published diameter — verify length and setback
RimsQualified part search
Mavic CXP 22, 32-hole Named archived component — verify dimensions
HubsQualified part search
Campagnolo Mirage Named archived component — verify dimensions

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.

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 →
  • FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.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 9-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.Check wheels and tires →
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
0 of 19 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: 2004 Bianchi Eros · Road race & triathlon · Published sizes: 49cm, 51cm, 53cm, 55cm, 57cm, 59cm, 61cm, 63cm

Archived: Frame: TIG-welded · Fork: Bianchi · Carbon fiber composite w/chromoly steerer, unicrown crown

Archived: Group: Road Mix · Shifters: Campagnolo Mirage Ergo · Front derailleur: Campagnolo Mirage, clamp-on/28.6mm · Rear derailleur: Campagnolo Mirage · Crankset: Campagnolo Mirage Triple, 30/42/52 teeth · Bottom bracket: Campagnolo Veloce, 111mm spindle · Rear cogs: 9-speed, 13 - 26 teeth · Chain: KMC, 1/2 x 3/32"

Archived: Brakes: Campagnolo Mirage dual pivot brakes, Campagnolo Mirage Ergo levers

Archived: Wheel size: 700c wheels · Rims: Mavic CXP 22, 32-hole · Hubs: Campagnolo Mirage · Front tire: 700 x 25c Continental Sport 1000

Controls and contact points

Archived: Headset: 1" VP · Handlebar: Deda Elementi Piega · Stem: Deda Elementi Linx · Seatpost: Bianchi aluminum, 27.2mm diameter · Saddle: Selle Italia Onda Sudo · Pedals: Victor VP-109

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.

My Garage

Velopedia

Enter your email and Velopedia will send a private sign-in link. No password required.

Have you owned this bike?Help preserve its real-world history by sharing your owner experience.

Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.

Add fit, maintenance and buyer detailsOptional · five additional fields

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Current market

Snapshot not yet available
Protected live updateReady after page interactionAutomated crawlers do not trigger marketplace requests.

Move, scroll, tap or type to start the protected update.

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

Scroll to Top