
Velopedia Bicycle Archive
2004 Iron Horse Sinister Expert
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
- $1,049.99
- Sizes
- 17", 19", 21"
- Colors
- Textured Silver/Black
- Geometry
- Legacy reference · Geometry context
- In this record
- 30 specifications · archived image · original MSRP · geometry
- Archive ID
- 31893
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum |
| Fork | Marzocchi EXR Supra, 105mm travel |
| Fork Material | Aluminum/magnesium, dual crown |
| Rear Shock | Fox Vanilla R |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | SRAM X.7 Trigger |
| Front Derailleur | Shimano Deore |
| Rear Derailleur | SRAM X.7 |
| Crankset | TruVativ 5D, 24/34/44 teeth |
| Bottom Bracket | TruVativ ISIS Drive SL |
| Rear Cogs | 9-speed, 11 - 32 teeth |
| Chain | Shimano HG-73, 1/2 x 3/32" |
| Pedals | Wellgo WAM-M919 |
Brakes
| Brakes | Hayes HFX-9 XC brakes, Hayes HFX-9 XC levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" integrated Aheadset |
|---|---|
| Handlebar | TruVativ |
| Handlebar Extensions | N/A |
| Stem | TruVativ |
| Saddle | WTB Speed V Comp |
| Seatpost | Alloy micro-adjust |
Wheels & Tires
| Hubs | Aluminum disc, sealed bearing |
|---|---|
| Rims | WTB SpeedDisc, 32-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) Black straight gauge |
| Front Tire | 26 x 2.1" WTB MotoRaptor |
| Wheel Size | 26" wheels |
Historical reference geometry
Geometry
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.
| Measurement | Legacy reference |
|---|---|
| Head-tube angle | 70° |
| Seat-tube angle | 70° |
| Chainstay / rear center | 429.3 mm |
| Fork offset / rake | 38.1 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Model-level historical reference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 70°, the head angle sits somewhat slacker than typical among mountain geometries represented in Velopedia for this period. Its 70° 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
More qualified parts (2)
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. 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 →- 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 →
- 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 →
- 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
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.
Identity and fit
Follow the full used-bike inspection order →Archived: 2004 Iron Horse Sinister Expert · Mountain bike, front & rear suspension · Published sizes: 17", 19", 21"
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Marzocchi EXR Supra, 105mm travel · Aluminum/magnesium, dual crown
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi EXR Supra, 105mm travel · Rear shock: Fox Vanilla R
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: SRAM X.7 Trigger · Front derailleur: Shimano Deore · Rear derailleur: SRAM X.7 · Crankset: TruVativ 5D, 24/34/44 teeth · Bottom bracket: TruVativ ISIS Drive SL · Rear cogs: 9-speed, 11 - 32 teeth · Chain: Shimano HG-73, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Hayes HFX-9 XC brakes, Hayes HFX-9 XC levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: WTB SpeedDisc, 32-hole · Hubs: Aluminum disc, sealed bearing · Front tire: 26 x 2.1" WTB MotoRaptor
Controls and contact points
Archived: Headset: 1 1/8" integrated Aheadset · Handlebar: TruVativ · Stem: TruVativ · Seatpost: Alloy micro-adjust · Saddle: WTB Speed V Comp · Pedals: Wellgo WAM-M919
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.




