Velopedia Bicycle Archive
2005 Specialized Sirrus
Original specifications: Shimano Sora · 8-speed · mechanical rear derailleur · 700c wheels.
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At a glance
- Model year
- 2005
- Category
- Hybrid
- Original MSRP
- $520.00
- Sizes
- XS, S, M, L, XL
- Colors
- Black, Red
- In this record
- 26 specifications · archived image · original MSRP
- Archive ID
- 10640
Model history 13 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 ST-EF35 |
| Front Derailleur | Shimano T-301, bottom-pull/clamp-on 31.8mm |
| Rear Derailleur | Shimano Sora |
| Crankset | Specialized Forearm Sport, 28/38/48 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 | Aluminum linear-pull brakes, Shimano EF35 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 | Aluminum 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.
Speed estimates require verified rear tire dimensions. Gear ratios are shown without assuming a tire size.
Parts & serviceability
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More parts (6)
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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 · 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 ST-EF35 · Front derailleur: Shimano T-301, bottom-pull/clamp-on 31.8mm · Rear derailleur: Shimano Sora · Crankset: Specialized Forearm Sport, 28/38/48 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: Aluminum linear-pull brakes, Shimano EF35 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Alex DA-16, 32-hole · Hubs: Aluminum 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.





