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    MSRP
    Where to Buy
    $1

    At

    Category
    Commuter
    5.5
    Frame
    Aluminum
    Aluminum
    Wheels
    Aluminum
    Wheel Size
    700c
    Avid Hydraulic Disc
    Apex
    Drivetrain
    2 × 10
    Suspension
    Hardtail
    Front Travel
    52mm
    Brand Site

    specialized.com

    Summary
    The Specialized Source Expert Disc is a 700c aluminum frame commuter bike with mid-range components and avid hydraulic disc brakes.

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    Insights
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    38 mph

    Source Expert Disc

    Highest gear

    (descending)

    Geometry
    Specs
    Frame

    Specialized E5 aluminum, fully manipulated tubing, smooth weld, compact design, inside rear triangle disc mount, internal cable routing, integrated headset, fender/rack eyelets, center kickstand plate

    Fork

    Aluminum legs/crown, Cr-Mo steerer, 52mm fully integrated headset, fender/rack eyelets, internal light cable routing

    Travel52mm

    Bottom Bracket

    GXP, external bearing

    Headset

    1-1/8"" sealed Cr-Mo Campy Style integrated bearings, 15mm alloy cone spacer with 30mm of spacers

    Stem

    Specialized EliteSet, 3D forged alloy, 12-degree, 4-position adjustable, 4-bolt, 31.8mm clamp

    Handlebar

    Specialized DB, butted alloy, flat bar, 6-degree bend, 31.8mm

    Saddle

    Body Geometry Targa Comp, 143mm wide

    Seatpost

    Alloy, 2-bolt forged head, 27.2mm, 350mm

    TypeRigid

    Pedals

    Sirrus pedal, nylon body, symmetric alloy cage, low profile bearing system, toe clip capable

    Groupset
    Rear Derailleur

    SRAM Apex

    Front Derailleur

    SRAM Apex

    Crank

    FSA Omega, 48/34, w/chainguard

    Shifters

    SRAM S700 flat bar, 10-speed

    Cassette

    SRAM 1050, 10-speed, 11-32t

    Chain

    KMC X10 nickel plate, reusable Missing Link

    Brakes

    Front: Avid Trekking hydraulic disc, 160mm G2GC rotors, Rear: Avid Trekking hydraulic disc, 160mm G2GC rotors

    TypeAvid Hydraulic Disc

    Brake Levers

    Avid Trekking hydraulic, 3-finger lever

    Wheels
    Rims

    DRX300 Disc, alloy double-wall, sleeved, CNC machined, 32h

    Spokes

    Stainless, 2mm

    Front Hub

    Supernova Infinity 8 dynamo hub, Freespin technology switchable drag, QR

    Rear Hub

    Machined disc mount & flanges, double-sealed, ground race, dual lock nuts w/ 19mm contact side

    Tires

    Front: Specialized Espoir Sport Reflect w/ double BlackBelt, 60 TPI, wire bead, 700x30c, Rear: Specialized Espoir Sport Reflect w/ double BlackBelt, 60 TPI, wire bead, 700x30c

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