Bike Comparison
    MSRP
    ($676)$799
    Where to Buy
    $1

    At

    $749

    6% off At Trek

    $799

    At Biloxi Bicycle Works

    See more

    Category
    FitnessFitness
    Weight
    25.9 lbs
    3.4
    3.4
    AluminumAluminum
    Fork
    SteelAluminum
    Wheels
    AluminumAluminum
    Wheel Size
    700c700c
    Brakes
    Hydraulic DiscHydraulic Disc
    Groupset
    Acera, TourneyAltus, Acera
    Drivetrain
    2 × 82 × 9
    Brand Site

    specialized.com

    trekbikes.com

    Summary
    The Specialized Sirrus 2.0 Step Through is a 700c aluminum frame fitness bike with modest components and hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    2021 Sirrus 2.0 Step Through
    2023 FX 2 Disc
    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)

    36 mph

    2023 FX 2 Disc

    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

    ColorsGloss Vivid Coral / Summer Blue / Satin Black Reflective; Satin Cast Black / Gloss Black / Satin Black Reflective

    Alpha Gold Aluminum, DuoTrap S compatible, internal cable routing, flat mount disc, rack & fender mounts, 135x5mm QR

    BB StandardBSA, 68mm, Threaded

    ColorsGloss Vivid Coral / Summer Blue / Satin Black Reflective; Satin Cast Black / Gloss Black / Satin Black Reflective

    Fork

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

    FX Alloy, flat mount disc, rack mounts, 405 mm axle-to-crown, ThruSkew 5mm QR

    Bottom Bracket

    BSA, square-taper, 68mm

    Sealed cartridge, 68mm

    Headset

    1 1/8'' steel threadless

    Stem

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

    Size: XS, S, M, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: L, XL, XXL, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 100mm length

    Handlebar

    Double-butted alloy, 9-degree backsweep, 31.8mm

    Size: XS, S, M, Bontrager alloy, 31.8mm, 15mm rise, 600mm width; Size: L, XL, XXL, Bontrager alloy, 31.8mm, 15mm rise, 660mm width

    Saddle

    Bridge Sport, Steel rails, 155/143mm

    Bontrager Sport

    Seatpost

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

    Bontrager alloy, 27.2mm, 12mm offset, 330mm length

    Pedals

    Specialized Body Geometry Fitness, platform, plastic

    Bontrager City pedals

    Grips

    Bontrager Satellite

    Groupset
    Rear Derailleur

    Shimano Acera, 8-speed

    Shimano Altus M2000, long cage

    Front Derailleur

    Shimano Tourney FD-TY710

    Shimano Acera T3000, 34.9mm clamp, top swing, dual pull

    Crank

    Shimano Tourney, 3-piece, 46/30T, 46/30T w/ chainguard

    Forged alloy, 46/30, chainguard, 170mm length

    Shifters

    Shimano Acera, 8-speed

    Size: XS, S, M, L, XL, XXL, Shimano Altus M2010, 9 speed; Size: XS, S, M, L, XL, XXL, Shimano Altus M2010, 2 speed

    Cassette

    Shimano Altus, 8-speed, 11-32t

    Shimano HG200, 11-36, 9 speed

    Chain

    KMC X8 w/ Missing Link™

    KMC X9

    Brakes

    Front: Promax F1, hydraulic disc, flat-mount, 160mm, Rear: Promax F1, hydraulic disc, flat-mount, 140mm

    Tektro HD-R280 hydraulic disc, flat mount, 160mm rotor

    Wheels
    Rims

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

    Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve

    Spokes

    Stainless, 14g

    Front Hub

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

    Formula DC-20, alloy, 6-bolt, 5x100mm QR

    Rear Hub

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

    Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR

    Tires

    Front: RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c, Rear: RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c

    Bontrager H2 Comp, wire bead, 30 tpi, 700x35mm

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