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    Sirrus2013 Specialized
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Fitness
    2.9
    Frame
    		Aluminum
    		Steel
    Wheels
    		Aluminum
    Wheel Size
    		700c
    		Rim
    		Altus
    Drivetrain
    		3 × 8
    Brand Site

    specialized.com

    Summary
    		The Specialized Sirrus is a 700c aluminum frame fitness bike with modest components and rim 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

    Sirrus

    Highest gear

    (descending)

    Geometry
    Specs
    Sirrus2013 Specialized
    Frame

    Specialized A1 Premium Aluminum, fully manipulated butted tubing, integrated lower bearing, fender/rack eyelets

    Fork

    Specialized Hi-Ten steel fork

    Bottom Bracket

    Cartridge bearing, square spindle w/ crank stop right side, capless bolts

    Headset

    1-1/8"" FSA integrated cartridge lower, external sealed upper bearing

    Stem

    Melt-forged alloy, 4-bolt, 20-degreeree rise, 25.4mm clamp

    Handlebar

    Specialized alloy flat bar, 25.4mm, 6-degreeree backsweep

    Saddle

    Body Geometry Targa Sport, 155mm

    Seatpost

    Alloy, 2-bolt head, 27.2mm

    Type: Rigid

    Pedals

    Nylon flat pedal

    Groupset
    Rear Derailleur

    Shimano Altus

    Front Derailleur

    Shimano FDM-191, top-swing, dual-pull

    Crank

    Shimano FC-M131 triple, 8-speed, w/ chainguard

    Shifters

    Shimano EF-51, EZ Fire

    Cassette

    Shimano 8-speed, 11-32

    Chain

    KMC X-8, reusable Missing Link

    Brakes

    Front: Die cast alloy, linear pull, Rear: Die cast alloy, linear pull

    Type: Rim

    Brake Levers

    Shimano EF-51 2-finger, brake & shift Lever

    Wheels
    Rims

    Alex alloy double-wall, CNC Sidewalls, 32 holes

    Spokes

    Stainless, 2.0mm (14g)

    Front Hub

    Double sealed, ground race, dual lock nuts w/ 17mm contact side, 5mm QR

    Rear Hub

    Double-sealed, loose ball, dual-lock nuts

    Tires

    Front: Specialized Nimbus w/ Flak Jacket, 26TPI, 700x32c, Rear: Specialized Nimbus w/ Flak Jacket, 26TPI, 700x32c

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