Bike Comparison
    MSRP
    $775$775
    Where to Buy
    $1

    At

    $775

    At Specialized

    Category
    FitnessFitness
    Weight
    27.1 lbs
    3.9
    3.9
    AluminumAluminum
    Fork
    SteelSteel
    Wheels
    AluminumAluminum
    Wheel Size
    700c700c
    Brakes
    Hydraulic DiscHydraulic Disc
    Groupset
    microSHIFT AdventmicroSHIFT Acolyte
    Drivetrain
    1 × 81 × 8
    Brand Site

    specialized.com

    specialized.com

    Summary
    The Specialized Sirrus X 2.0 is a 700c aluminum frame fitness bike with mid-range components and hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    2021 Sirrus X 2.0
    2023 Sirrus X 2.0
    Other Fitness bikes
    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)

    29 mph

    2021 Sirrus X 2.0

    29 mph

    2023 Sirrus X 2.0

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Frame

    Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts

    BB StandardBSA, 68mm, Threaded

    ColorsDove Gray / Acid Pink-Golden Yellow Fade / Silver; Dusty Turquoise / Black / Rocket Red; Black / Satin Charcoal Reflective; Gloss Clay / Cast Umber / Satin Black Reflective

    Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, Plug + Play rack/fender mounts

    BB StandardBSA, 68mm, Threaded

    ColorsDove Gray / Acid Pink-Golden Yellow Fade / Silver; Dusty Turquoise / Black / Rocket Red; Black / Satin Charcoal Reflective; Gloss Clay / Cast Umber / Satin Black Reflective

    Fork

    Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release

    Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release

    Bottom Bracket

    BSA, square-taper, 68mm

    68mm, square taper, 124.5mm length

    Stem

    Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

    3D-forged alloy, 31.8mm, 7-degree rise

    Handlebar

    Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm

    Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm

    Saddle

    Bridge Sport, Steel rails, 155/143mm

    Bridge Sport, Steel rails, 155/143mm

    Seatpost

    Alloy, 12mm offset, 2-bolt clamp, 27.2mm

    Alloy, 12mm offset, 2-bolt clamp, 27.2mm

    Pedals

    Specialized Body Geometry Fitness, platform, plastic

    Specialized Body Geometry Fitness, platform, plastic

    Groupset
    Rear Derailleur

    MicroSHIFT Advent 9 Speed, W/O Clutch

    MicroSHIFT Acolyte 8-speed, with Clutch

    Crank

    3 pc, Alloy Forged Arms, 40T

    3 pc, Alloy Forged Arms, 40T, chainguard

    Shifters

    MicroSHIFT, 8-speed

    MicroSHIFT, 8-speed

    Cassette

    MicroSHIFT, 8-Speed, 12-42t

    MicroSHIFT, 8-Speed, 12-42t

    Chain

    KMC X8 w/ Missing Link™

    KMC X8 w/ Missing Link™, 8-speed

    Brakes

    Front: Promax F1, hydraulic disc, flat-mount, 160mm, Rear: Promax F1, hydraulic disc, flat-mount, 160mm

    Front: Promax F1, hydraulic disc, flat-mount, 160mm, Rear: Promax F1, hydraulic disc, flat-mount, 160mm

    Wheels
    Rims

    700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h

    700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h

    Spokes

    Stainless, 14g

    Stainless, 14g

    Front Hub

    Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h

    Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h

    Rear Hub

    Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h

    Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h

    Tires

    Front: Pathfinder Sport, 700x42mm, Rear: Pathfinder Sport, 700x42mm

    Front: Pathfinder Sport, 700x42mm, Rear: Pathfinder Sport, 700x42mm

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