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    Sirrus2011 Specialized
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Fitness
    2.9
    Frame
    		Aluminum
    		Steel
    Wheels
    		Aluminum
    Wheel Size
    		700c
    		Rim
    		Altus
    Drivetrain
    		3 × 7
    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)

    35 mph

    Sirrus

    Highest gear

    (descending)

    Geometry
    Specs
    Sirrus2011 Specialized
    Frame

    Specialized A1 Premium aluminum, fully manipulated tubing, smooth weld compact design, internal cable routing, integrated headset,fender and rack eyelets

    Fork

    Straight blade steel fork w/ rack eyelets

    Bottom Bracket

    Sealed cartridge, square taper, 68mm

    Headset

    1-1/8"" sealed Cr-Mo bearings integrated w/ headset, 20mm alloy cone spacer with 20mm of spacers

    Stem

    Alloy, CP bolt, 25.4mm

    Handlebar

    Alloy, small rise, 25.4mm

    Saddle

    Body Geometry Riva Road, 155mm width

    Seatpost

    Alloy, two-bolt clamp, 30.9mm

    Type: Rigid

    Pedals

    Nylon flat pedal w/ reflectors

    Groupset
    Rear Derailleur

    Shimano Altus

    Front Derailleur

    Shimano, dual pull, top swing

    Crank

    Shimano FCM131

    Shifters

    Shimano EF-51, EZ Fire

    Cassette

    SRAM, 7-speed, 12-32t

    Chain

    KMC Z-7, 12"" x 3/32""

    Brakes

    Front: Die cast aluminum, 108mm linear pull, Rear: Die cast aluminum, 108mm linear pull

    Type: Rim

    Brake Levers

    Shimano EF-51 integrated w/ shifter

    Wheels
    Rims

    Alex AS-14, double wall

    Spokes

    Stainless 14g

    Front Hub

    Forged alloy, sealed, QR, 32h

    Rear Hub

    Forged alloy, double-sealed, cassette, QR, 32h

    Tires

    Front: Specialized All Condition Sport, 700x32c, wire bead, 60TPI, w/ Flak Jacket protection, Rear: Specialized All Condition Sport, 700x32c, wire bead, 60TPI, w/ Flak Jacket protection

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