Velopedia Bicycle Archive

2004 Iron Horse SGS-Pro DH

Original specifications: Mountain Mix drivetrain · 26" wheels · geometry for 1 published size.

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At a glance

Model year
2004
Category
Mountain
Original MSRP
$2,499.99
Sizes
17", 19", 21"
Colors
Matte Silver
Geometry
Legacy reference · Geometry context
In this record
29 specifications · archived image · original MSRP · geometry
Archive ID
31865
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Manufacturer catalog

Published sizes and colors

3 sizes · 1 color

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

Published sizes

17"19"21"

Published colors

Matte Silver

Frameset

Frame ConstructionTIG-welded
Frame MaterialAluminum, butted
ForkRock Shox Boxxer Race, 7.0" travel
Rear ShockAnswer Manitou SPV Coil 4-way, 8" travel

Drivetrain

Component GroupMountain Mix
ShiftersShimano Deore RapidFire
Front DerailleurN/A
Rear DerailleurShimano Deore XT
CranksetFSA V-drive Xtreme 165mm, 38 teeth
Bottom BracketFSA Platinum Pro DH, 100mm spindle
Rear Cogs9-speed, 11 - 32 teeth
ChainShimano HG-73, 1/2 x 3/32"
PedalsWellgo B37 Platform

Brakes

BrakesHayes HFX-9 Hydraulic Disc brakes, Hayes HFX-9 HD levers

Cockpit & Contact Points

Headset1 1/2" FSA No.61 w/1 1/8" reducer
HandlebarFSA Riser bar
Handlebar ExtensionsN/A
StemFSA 3D forged
SaddleWTB Speed V Race
SeatpostMicro adjust, 29.8mm diameter

Wheels & Tires

HubsFront: Alloy 20mm thru axle, Rear: Alloy 12mm thru axle
RimsWTB SpeedDisc Pro DH, 36-hole
SpokesStainless steel, 14ga. (2.0mm) Black straight gauge
Front Tire26 x 2.5" Maxxis Minion
Wheel Size26" wheels

Historical reference geometry

Geometry

Legacy reference · 3 measurements

This historical geometry describes the model, but the original source does not identify its frame size. Use it as a period reference, not a size-specific fit comparison.

MeasurementLegacy reference
Head-tube angle66.5°
Seat-tube angle65°
Chainstay / rear center440.9 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Model-level historical reference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 66.5°, the head angle sits toward the slacker end among mountain geometries represented in Velopedia for this period. Its 65° seat angle is toward the more relaxed end among the same-period mountain references.

Compared with 414 distinct legacy mountain geometries from model years 2002–2006. Only angular measurements are used because the historical reference frame size is unidentified.

Parts & serviceability

Find replacement parts

3 top part searches
Front tireMatching fit standard
26x2.5" Maxxis Minion Named tire and published size
Bottom bracketQualified part search
FSA Platinum Pro DH, 100mm spindle Named archived component — verify dimensions
PedalsQualified part search
Wellgo B37 Platform Named archived component — verify exact version
More qualified parts (6)
SaddleQualified part search
WTB Speed V Race Named archived component — verify exact version
CranksetExact archived part
FSA V-drive Xtreme 165mm, 38 teeth Named archived component — verify exact version
Rear derailleurMatching configuration
Shimano Deore XT Interpreted as Shimano Deore XT · 9-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Deore RapidFire Interpreted as Shimano Deore · 9-speed · mechanical Named component · published drivetrain speed — verify exact version
StemQualified part search
FSA 3D forged Named archived component — verify dimensions
SeatpostMatching fit standard
29.8 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 →
  • FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
  • BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
  • SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
  • 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 22 checks based on 6 archived component groups Open checklistClose checklist
0 of 22 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 Iron Horse SGS-Pro DH · Mountain bike, front & rear suspension · Published sizes: 17", 19", 21"

Archived: Frame: TIG-welded · Fork: Rock Shox Boxxer Race, 7.0" travel

Archived: Fork: Rock Shox Boxxer Race, 7.0" travel · Rear shock: Answer Manitou SPV Coil 4-way, 8" travel

Archived: Group: Mountain Mix · Shifters: Shimano Deore RapidFire · Rear derailleur: Shimano Deore XT · Crankset: FSA V-drive Xtreme 165mm, 38 teeth · Bottom bracket: FSA Platinum Pro DH, 100mm spindle · Rear cogs: 9-speed, 11 - 32 teeth · Chain: Shimano HG-73, 1/2 x 3/32"

Archived: Brakes: Hayes HFX-9 Hydraulic Disc brakes, Hayes HFX-9 HD levers

Archived: Wheel size: 26" wheels · Rims: WTB SpeedDisc Pro DH, 36-hole · Hubs: Front: Alloy 20mm thru axle, Rear: Alloy 12mm thru axle · Front tire: 26 x 2.5" Maxxis Minion

Controls and contact points

Archived: Headset: 1 1/2" FSA No.61 w/1 1/8" reducer · Handlebar: FSA Riser bar · Stem: FSA 3D forged · Seatpost: Micro adjust, 29.8mm diameter · Saddle: WTB Speed V Race · Pedals: Wellgo B37 Platform

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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