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    Sirrus 1.0

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    2021 Sirrus 1.0

    You have places to go, people to see, and fitness goals to achieve. We get it—life moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. This Sirrus features a reliable set of components that are built to withstand years of daily abuse, like comfortable Body Geometry touchpoints and fuss-free mechanical V-brakes. So, as you push yourself to reach your goals, you'll feel more connected to your bike and know that you have the perfect partner with Sirrus.

    Technical Specifications

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    DRIVETRAIN

    Rear Derailleur

    Shimano Altus, 7-/8-speed

    Shift Levers

    Shimano EF500, 7-speed

    Front Derailleur

    Shimano Tourney FD-TY710

    Cassette

    Shimano HG200, 7-speed, 12-32t

    Crankset

    Shimano Tourney, 3-piece, 46/30T

    Chainrings

    46/30T w/ chainguard

    Bottom Bracket

    BSA, square-taper, 68mm

    Chain

    KMC X8 w/ Missing Link™

    BRAKES

    Rear Brake

    V-brake, linear pull

    Front Brake

    V-brake, linear pull

    ACCESSORIES

    Pedals

    Specialized Body Geometry Fitness, platform, plastic

    WHEELS & TIRES

    Rims

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

    Front Hub

    Alloy, loose ball bearing, quick-release, 32h

    Rear Hub

    Alloy, loose ball bearings, quick-release, 7-speed freehub, 32h

    Front Tire

    RoadSport, Wire bead, Blackbelt/Endurant Casing, 700x32c

    Rear Tire

    RoadSport, Wire bead, Blackbelt/Endurant Casing, 700x32c

    FRAMESET

    Frame

    Specialized A1 Premium Aluminum, Fitness Geometry, Butted tubing, Internal Cable Routing, V-Brake, Quick-Release, Plug + Play rack/fender mounts

    Seat Binder

    Bolt-type, 31.8mm

    COCKPIT

    SeatPost

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

    Stem

    Specialized Flowset, integrated, 3D-forged alloy, 4-bolt, 12-degree rise, 31.8mm clamp

    Tape

    Specialized Body Geometry XCT, lock-on

    Handlebars

    Double-butted alloy, 5-degree backsweep, 25.4mm

    Saddle

    Bridge Sport, Steel rails, 155/143mm

    Suspension

    Fork

    Hi-Ten steel, V-Brake, Plug + Play fender mounts, low rider rack mounts, quick-release

    WHEELS

    Spokes

    Stainless, 14g

    Inner Tubes

    Schrader valve, 40mm

    * Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

    Geometry

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    XXSXSSMLXL
    Crank Length170mm170mm170mm170mm175mm175mm
    Stem Length60mm60mm75mm75mm90mm110mm
    Handlebar Width580mm580mm600mm600mm620mm620mm
    Seatpost Length300mm300mm350mm350mm400mm400mm
    Saddle Width155mm155mm155mm143mm143mm143mm
    Stack536mm555mm562mm593mm608mm632mm
    Reach373mm388mm393mm398mm402mm414mm
    Head-Tube Length121mm139mm147mm175mm191mm217mm
    Head-Tube Angle69.5°70°70°71°71°71°
    B-B Height278mm278mm278mm278mm278mm278mm
    B-B Drop70mm70mm70mm70mm70mm70mm
    Trail75mm72mm72mm65mm65mm65mm
    Fork Length (full)395mm395mm395mm395mm395mm395mm
    Fork Rake/Offset51mm51mm51mm51mm51mm51mm
    Front-Center605mm622mm630mm635mm645mm665mm
    Chain-Stay Length440mm440mm440mm440mm440mm440mm
    Wheelbase1036mm1053mm1061mm1066mm1075mm1096mm
    Top-Tube Length (horizontal)531mm552mm559mm573mm582mm601mm
    Bike Stand-Over Height692mm715mm745mm775mm805mm827mm
    Seat-Tube Length360mm395mm440mm470mm510mm530mm
    Seat-Tube Angle73.5°73.5°73.5°73.5°73.5°73.5°
    Geometry

    Rider Reviews

    • 5
    • 10 Reviews

    Love it

    Fantastic bike, great quality, really nice to ride, lightweight

    Would Recommend?
    Yes!

    Verified Buyer

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    Name:
    Spencer B.

    Helpful?

    Fabulous looking bike, a little

    Fabulous looking bike, a little bit heavy but good enough for most situations in the city.

    Would Recommend?
    Yes!

    Verified Buyer

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    Name:
    Guest G.

    Helpful?

    Great road bike! Would definitely

    Great road bike! Would definitely recommend!

    Would Recommend?
    Yes!

    Verified Buyer

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    Name:
    Guest G.

    Helpful?

    Good for beginners to intermediate

    Easy shifting makes for a smooth riding, ergonomically shaped which makes riding for 4 to 5 hours very pleasant


    Name:
    Libertyson1776

    Helpful?

    Nice bike

    Just bought this for my wife and its really nice very good components only thing i noticed that was different is its a 2x crank and on this tech spec it shows it as a 3x.


    Name:
    Amanda

    Helpful?

    Loving the Sirrus 1.0

    Just recently bought the 1.0 and I am loving every bit of it! I've been putting it to the test and this thing can handle dirt, gravel, bumpy city streets, and pretty much everything you throw at it (within reason). Solid bike and with the internal cable routing, it looks as good as it runs.


    Name:
    Walker A.

    Helpful?

    The Sirrus 1.0 is really a great fitness bicycle

    59 year old that recently sold a vintage road racing bike. Couldn't ride it anymore, literally a pain in the neck. Missed cycling. So I decided to get a Specialized Sirrus bike, but which one? The Sirrus line is either Aluminum or carbon. I decided to dip the toe in the water with the 1.0. I don't do gravel, so no X model. I'm in love. The fitness style upright geometry is super comfortable. I can see where I'm going (a plus). I love that the brakes and shift levers are all one unit for a clean cockpit. The ride is so much better than I would have imagined.The bike feels lively and fun. It seems very well made. Mostly Shimano components on this one. They work very well together. Shifts are immediate and crisp. Braking is very good with the rim brakes. I am very happy with this purchase. The only thing I'm changing are the pedals. I'm going back to a clip-less (clipped in) pedal, as my feel slip off when pedaling down hill. Thats a personal preference. Most beginners will be fine with the supplied pedals. I'm 6'2"". I got the XL size. Went to Hilltop Bicycles in Summit. They were great.


    Name:
    Nate R.

    Helpful?

    Awesome bike. Would Recommend.

    *I own the Sirrus 1.0 Single Speed* I wanted a good entry-level bike that has the ability to be a commuter and fitness bike. This bike checks those boxes. Looks clean, feels very comfortable to ride. I am 5'4 so I got a size small, feels great! Would Recommend!


    Name:
    Antonio G.

    Helpful?

    Love this bike. And would definitely buy again.

    I bought the Specialized Sirrus 1.0 in color black. In size Medium. I am 5'6. Fits perfectly. It's lightweight. Very fast. And also very good looking!


    Name:
    Vincent S.

    Helpful?