Velopedia Bicycle Archive

2002 Specialized Sirrus A1

Original specifications: Hybrid Mix drivetrain · 700c wheels · legacy reference geometry.

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At a glance

Model year
2002
Category
Hybrid
Original MSRP
$550.00
Sizes
50cm, 54cm, 56cm, 58cm, 60cm
Colors
Silver
Geometry
Legacy reference
In this record
27 specifications · archived image · original MSRP · geometry
Archive ID
37063
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Manufacturer catalog

Published sizes and colors

5 sizes · 1 color

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

Published sizes

50cm54cm56cm58cm60cm

Published colors

Silver

Frameset

Frame ConstructionTIG-welded
Frame MaterialSpecialized A1 aluminum
ForkSpecialized
Fork MaterialChromoly, unicrown crown

Drivetrain

Component GroupHybrid Mix
ShiftersShimano ST-EF33 EZ Fire STI
Front DerailleurShimano FC-T301, bottom-pull/clamp-on 31.8mm
Rear DerailleurShimano Acera
CranksetSpecialized Sirrus, 28/38/48 teeth
Bottom BracketTange Seiki Sport, 113mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 11 - 30 teeth
ChainShimano CN-HG50, 1/2 x 3/32"
PedalsSpecialized aluminum platform

Brakes

BrakesProMax SX-V85 linear-pull brakes, Shimano ST-EF33 EZ Fire STI levers

Cockpit & Contact Points

Headset1 1/8" threadless Ritchey Logic
HandlebarSpecialized aluminum
Handlebar ExtensionsNot included
StemSpecialized aluminum
SaddleSpecialized Body Geometry Sport
SeatpostKalloy SP-245 suspension, 27.2mm diameter

Wheels & Tires

HubsAluminum, Q/R
RimsAlex aluminum, 32-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire700 x 28c Specialized Nimbus EX
Wheel Size700c wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

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.

MeasurementLegacy reference
Top tube557 mm
Head-tube angle72.5°
Seat-tube angle73.5°
Chainstay / rear center418 mm
Wheelbase1014 mm
Fork offset / rake46 mm

The preserved source contains one model-level geometry set without an identified frame size.

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 · 11–30T · 8-speed
Lowest0.93:1 Highest4.36:1 Total range468%

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
Shimano CN-HG50, 1/2 x 3/32" Exact archived model
Front tireMatching fit standard
700 x 28c Specialized Nimbus EX Named tire and published size
Brake padsMatching fit standard
Linear-pull brake pads Published brake type — verify pad mounting style
More qualified parts (6)
SaddleQualified part search
Specialized Body Geometry Sport Named archived component — verify exact version
CranksetQualified part search
Specialized Sirrus, 28/38/48 teeth Named archived component — verify exact version
Rear derailleurMatching configuration
Shimano Acera Interpreted as Shimano Acera · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersExact archived part
Shimano ST-EF33 EZ Fire STI Exact archived model
SeatpostQualified part search
Kalloy SP-245 suspension, 27.2mm diameter Named archived component — verify dimensions
HeadsetQualified part search
1 1/8" threadless Ritchey Logic 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: 2002 Specialized Sirrus A1 · Hybrid · Published sizes: 50cm, 54cm, 56cm, 58cm, 60cm

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

Archived: Group: Hybrid Mix · Shifters: Shimano ST-EF33 EZ Fire STI · Front derailleur: Shimano FC-T301, bottom-pull/clamp-on 31.8mm · Rear derailleur: Shimano Acera · Crankset: Specialized Sirrus, 28/38/48 teeth · Bottom bracket: Tange Seiki Sport, 113mm spindle · Rear cogs: 8-speed, 11 - 30 teeth · Chain: Shimano CN-HG50, 1/2 x 3/32"

Archived: Brakes: ProMax SX-V85 linear-pull brakes, Shimano ST-EF33 EZ Fire STI levers

Archived: Wheel size: 700c wheels · Rims: Alex aluminum, 32-hole · Hubs: Aluminum, Q/R · Front tire: 700 x 28c Specialized Nimbus EX

Controls and contact points

Archived: Headset: 1 1/8" threadless Ritchey Logic · Handlebar: Specialized aluminum · Stem: Specialized aluminum · Seatpost: Kalloy SP-245 suspension, 27.2mm diameter · Saddle: Specialized Body Geometry Sport · Pedals: Specialized aluminum platform

Before and during the test ride

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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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