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

Manufacturer catalog

Published sizes and colors

5 sizes · 2 colors

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

Published sizes

XSSMLXL

Published colors

BlackRed

Frameset

Frame ConstructionTIG-welded
Frame MaterialA1 Premium aluminum
ForkSpecialized Sport
Fork MaterialChromoly, unicrown crown

Drivetrain

Component GroupHybrid Mix
ShiftersShimano ST-EF35
Front DerailleurShimano T-301, bottom-pull/clamp-on 31.8mm
Rear DerailleurShimano Sora
CranksetSpecialized Forearm Sport, 28/38/48 teeth
Bottom BracketTH Sport, 113mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 12 - 26 teeth
ChainShimano CN-HG50, 1/2 x 3/32"
PedalsComposite body

Brakes

BrakesAluminum linear-pull brakes, Shimano EF35 levers

Cockpit & Contact Points

Headset1 1/8" integrated Intellaset
HandlebarSpecialized Event
StemForged
SaddleBG Milano Comfort Max
SeatpostAluminum suspension, 27.2mm diameter

Wheels & Tires

HubsAluminum QR
RimsAlex DA-16, 32-hole
SpokesSpecialized stainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire700 x 28c Specialized All-Condition
Wheel Size700c wheels

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

Published build48/38/28T · 12–26T · 8-speed
Lowest1.08:1 Highest4.00:1 Total range371%

Speed estimates require verified rear tire dimensions. Gear ratios are shown without assuming a tire size.

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Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
Shimano CN-HG50, 1/2 x 3/32"
Front tire · Original
700 x 28c Specialized All-Condition
Brake pads · Original
Aluminum linear-pull brakes, Shimano EF35 levers
More parts (6)
Crankset · Original
Specialized Forearm Sport, 28/38/48 teeth
Rear derailleur · Original
Shimano Sora Search: Shimano Sora 8-speed mechanical rear derailleur
Shifters · Original
Shimano ST-EF35
Handlebar · Original
Specialized Event
Seatpost · Original
Aluminum suspension, 27.2mm diameter
Rims · Original
Alex DA-16, 32-hole

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.

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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: 2005 Specialized Sirrus · Hybrid · Published sizes: XS, S, M, L, XL

Archived: Frame: TIG-welded · Fork: Specialized Sport · Chromoly, unicrown crown

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"

Archived: Brakes: Aluminum linear-pull brakes, Shimano EF35 levers

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

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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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