Velopedia Bicycle Archive
2005 Specialized Sirrus Sport Disc
Original specifications: Shimano Tiagra · 8-speed · mechanical rear derailleur · 700c wheels.
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At a glance
- Model year
- 2005
- Category
- Hybrid
- Original MSRP
- $800.00
- Sizes
- XS, S, M, L, XL
- Colors
- Carbon
- In this record
- 26 specifications · archived image · original MSRP
- Archive ID
- 10639
Model history 2 other years
Original buildA1 Premium aluminum · Hybrid Mix · 700c wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium aluminum |
| Fork | Specialized Sport |
| Fork Material | Chromoly, unicrown crown |
Drivetrain
| Component Group | Hybrid Mix |
|---|---|
| Shifters | Shimano R-440 |
| Front Derailleur | Shimano Deore, bottom-pull/clamp-on 31.8mm |
| Rear Derailleur | Shimano Tiagra |
| Crankset | Specialized Comp, 30/42/52 teeth |
| Bottom Bracket | TH Sport, 113mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 8-speed, 12 - 26 teeth |
| Chain | Shimano CN-HG50, 1/2 x 3/32" |
| Pedals | Composite body |
Brakes
| Brakes | Shimano BR-M465 brakes, aluminum linear pull levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" integrated Intellaset |
|---|---|
| Handlebar | Specialized Event |
| Stem | Forged |
| Saddle | BG Milano Comfort Max |
| Seatpost | Aluminum suspension, 27.2mm diameter |
Wheels & Tires
| Hubs | Specialized QR |
|---|---|
| Rims | Alex DA-16, 32-hole |
| Spokes | Specialized stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 28c Specialized All-Condition |
| Wheel Size | 700c wheels |
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

SRAM PC-850 Chain One Color, 8 Speed
8 Speed
Replacement option · verify fit

Hutchinson Blackbird All Season TLR Hookless Tire Black/Tan, 700x28
700x28
Replacement option · verify fit

Specialized SW Mondo 2Bliss Tire Black, 700x28
700x28
Replacement option · verify fit
More parts (5)

Redshift Sports ShockStop Suspension Seatpost Black, 27.2x350mm, 35mm Travel
27.2x350mm, 35mm Travel
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. 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.
Bike-specific inspection checklist 19 checks based on 5 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: 2005 Specialized Sirrus Sport Disc · Hybrid · Published sizes: XS, S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Specialized Sport · Chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Hybrid Mix · Shifters: Shimano R-440 · Front derailleur: Shimano Deore, bottom-pull/clamp-on 31.8mm · Rear derailleur: Shimano Tiagra · Crankset: Specialized Comp, 30/42/52 teeth · Bottom bracket: TH Sport, 113mm spindle · Rear cogs: 8-speed, 12 - 26 teeth · Chain: Shimano CN-HG50, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Shimano BR-M465 brakes, aluminum linear pull levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Alex DA-16, 32-hole · Hubs: Specialized QR · Front tire: 700 x 28c Specialized All-Condition
Controls and contact points
Archived: Headset: 1 1/8" integrated Intellaset · Handlebar: Specialized Event · Stem: Forged · Seatpost: Aluminum suspension, 27.2mm diameter · Saddle: BG Milano Comfort Max · Pedals: Composite body
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



