Bike Comparison

The 2021 Specialized Sirrus X 2.0 Step Through is a 700c aluminum frame fitness bike with mid-range components and hydraulic disc brakes.

    2021 Specialized Sirrus X 2.0 Step Through
    MSRP($714)
    Where to Buy
    $1

    At

    CategoryFitness
    FrameAluminum
    ForkSteel
    WheelsAluminum
    Wheel Size700c
    Brake TypeHydraulic Disc
    GroupsetmicroSHIFT Advent
    
    Drivetrain
    Gear Range
    SeatpostRigid
    Brand Sitespecialized.com

    Can't decide? Get free advice from a Curated Expert.

    Shop with an Expert
    Similar Bikes Available Now
    Riders Also Compared

    Spec Level

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

    Spec level →$0$100$200$300$400$500$600$700
    Sirrus X 2.0 Step Through

    Geometry

    Specs
    Frame

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

    Fork

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

    Bottom Bracket

    BSA, square-taper, 68mm

    Stem

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

    Handlebar

    Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm

    Saddle

    Bridge Sport, Steel rails, 155/143mm

    Seatpost

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

    Pedals

    Specialized Body Geometry Fitness, platform, plastic

    Groupset
    Rear Derailleur

    MicroSHIFT Advent 9 Speed, W/O Clutch

    Crank

    3 pc, Alloy Forged Arms, 40T

    Shifters

    MicroSHIFT, 8-speed

    Cassette

    MicroSHIFT, 8-Speed, 12-42t

    Chain

    KMC X8 w/ Missing Link™

    Brakes

    Promax F1, hydraulic disc, flat-mount, 160mm

    Wheels
    Rims

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

    Spokes

    Stainless, 14g

    Front Hub

    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

    Tires

    Pathfinder Sport, 700x42mm