Velopedia Bicycle Archive

2008 Specialized Sirrus

Original specifications: Road Mix drivetrain · 700c wheels.

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At a glance

Model year
2008
Category
Road
Original MSRP
$550.00
Sizes
XS, S, M, large. xlarge
Colors
Brown, Silver, Black
In this record
26 specifications · archived image · original MSRP
Archive ID
24020
Model history 13 other years
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Historical catalog variants

Archived sizes and colors

12 item records

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

XSSMlarge. xlarge

Published colors

BrownSilverBlack
View 12 archived size/color combinations
SizeColor
XSBrown
SBrown
MBrown
large. xlargeBrown
XSSilver
SSilver
MSilver
large. xlargeSilver
XSBlack
SBlack
MBlack
large. xlargeBlack

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

Frameset

Frame ConstructionTIG-welded
Frame MaterialA1 premium aluminum
ForkSpecialized Comp
Fork MaterialAluminum/chromoly steerer, unicrown crown

Drivetrain

Component GroupRoad Mix
ShiftersShimano EF-50
Front DerailleurShimano T301, bottom pull
Rear DerailleurShimano Sora
CranksetSugino XD, 28/38/48 teeth
Bottom BracketSport cartridge, 113mm spindle
BB Shell Width68mm
Rear Cogs8-speed, 12 - 25 teeth
ChainKMC Z51
PedalsAlloy cage/composite body w/clips and straps

Brakes

BrakesForged 6061 alloy brakes, Shimano EF-50 levers

Cockpit & Contact Points

Headset1 1/8" integrated Specialized Mindset
HandlebarSpecialized Event
Handlebar ExtensionsNot included
StemSpecialized 3D forged 31.8
SaddleSpecialized Sonoma
SeatpostForged alloy, 27.2mm diameter

Wheels & Tires

HubsSpecialized forged alloy
RimsAlex S500, 32-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Front Tire700 x 28c Specialized All Condition wire
Wheel Size700c wheels

Published drivetrain ratios

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 · 12–25T · 8-speed
Lowest1.12:1 Highest4.00:1 Total range357%

The bar uses the same mechanical-ratio calculation as Compare. Wheel-dependent speed appears only when the record includes an exact ISO/ETRTO rear tire size; no tire size is assumed.

Parts & serviceability

Find replacement parts

3 top part searches
ChainMatching fit standard
KMC Z51 Exact archived model
Front tireMatching fit standard
700 x 28c Specialized All Condition wire Named tire and published size
SaddleQualified part search
Specialized Sonoma Named archived component — verify exact version
More qualified parts (6)
Rear derailleurMatching configuration
Shimano Sora Interpreted as Shimano Sora · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
HandlebarQualified part search
Specialized Event Named archived component — verify dimensions
StemQualified part search
Specialized 3D forged 31.8 Named archived component — verify dimensions
SeatpostMatching fit standard
27.2 mm seatpost Published diameter — verify length and setback
HeadsetQualified part search
1 1/8" integrated Specialized Mindset Named archived component — verify dimensions
RimsQualified part search
Alex S500, 32-hole Named archived component — verify dimensions

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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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: 2008 Specialized Sirrus · Road/sport · Published sizes: XS, S, M, large. xlarge

Archived: Frame: TIG-welded · Fork: Specialized Comp · Aluminum/chromoly steerer, unicrown crown

Archived: Group: Road Mix · Shifters: Shimano EF-50 · Front derailleur: Shimano T301, bottom pull · Rear derailleur: Shimano Sora · Crankset: Sugino XD, 28/38/48 teeth · Bottom bracket: Sport cartridge, 113mm spindle · Rear cogs: 8-speed, 12 - 25 teeth · Chain: KMC Z51

Archived: Brakes: Forged 6061 alloy brakes, Shimano EF-50 levers

Archived: Wheel size: 700c wheels · Rims: Alex S500, 32-hole · Hubs: Specialized forged alloy · Front tire: 700 x 28c Specialized All Condition wire

Controls and contact points

Archived: Headset: 1 1/8" integrated Specialized Mindset · Handlebar: Specialized Event · Stem: Specialized 3D forged 31.8 · Seatpost: Forged alloy, 27.2mm diameter · Saddle: Specialized Sonoma · Pedals: Alloy cage/composite body w/clips and straps

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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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