Velopedia Bicycle Archive

2012 Specialized Source Expert Disc

Original specifications.

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At a glance

Model year
2012
Category
City & Commuter
Original MSRP
$2,000.00
Sizes
S, M, L, XL
Colors
Black/Gray
In this record
18 specifications · archived image · original MSRP
Archive ID
3062892
Model history 1 other year
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Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

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

Published sizes

SMLXL

Published colors

Black/Gray

Frameset

Frame MaterialE5 Aluminum
ForkAluminum legs, Cro-mo steerer

Drivetrain

ShiftersSRAM S700 flat bar 10spd
Front DerailleurSRAM Apex
Rear DerailleurSRAM Apex
CranksetFSA Omeg 48/34 w/chainguard
Bottom BracketGXP external bearing
CassetteSRAM 1050 10spd 11-32t
ChainKMC X10 nickel plate
PedalsSirrus pedal, toe clip compat

Brakes

BrakesAvid Trekking hydraulic disc

Cockpit & Contact Points

HeadsetIntegrated 1-1/8" threadless
HandlebarSpecialized DB flat bar 31.8mm
StemSpecialized EliteSet
SaddleTarga Comp cro-mo rails 143
SeatpostAlloy 27.2

Wheels & Tires

RimsDRX300 Disc
Front TireEspoir Sport dbl blkblt 700x30

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 build48/34T · 11–32T · 10-speed
Lowest1.06:1 Highest4.36:1 Total range411%

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
ChainExact archived part
KMC X10 nickel plate Exact archived model
CassetteQualified part search
SRAM 1050 10spd 11-32t Named component · published drivetrain speed — verify exact version
CranksetQualified part search
FSA Omeg 48/34 w/chainguard Named archived component — verify exact version
More qualified parts (4)
Front derailleurOne check needed
SRAM Apex Interpreted as SRAM Apex · 10-speed Named component · published drivetrain speed — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Rear derailleurOne check needed
SRAM Apex Interpreted as SRAM Apex · 10-speed Named component · published drivetrain speed — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
HandlebarQualified part search
Specialized DB flat bar 31.8mm Named archived component — verify dimensions
StemQualified part search
Specialized EliteSet 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. 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: 2012 Specialized Source Expert Disc · City/Commuter · Published sizes: S, M, L, XL

Archived: Frame: E5 Aluminum · Fork: Aluminum legs, Cro-mo steerer

Archived: Shifters: SRAM S700 flat bar 10spd · Front derailleur: SRAM Apex · Rear derailleur: SRAM Apex · Crankset: FSA Omeg 48/34 w/chainguard · Bottom bracket: GXP external bearing · Cassette: SRAM 1050 10spd 11-32t · Chain: KMC X10 nickel plate

Archived: Brakes: Avid Trekking hydraulic disc

Archived: Rims: DRX300 Disc · Front tire: Espoir Sport dbl blkblt 700x30

Controls and contact points

Archived: Headset: Integrated 1-1/8" threadless · Handlebar: Specialized DB flat bar 31.8mm · Stem: Specialized EliteSet · Seatpost: Alloy 27.2 · Saddle: Targa Comp cro-mo rails 143 · Pedals: Sirrus pedal, toe clip compat

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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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