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2023 Specialized Sirrus Carbon Struts its Stuff for Comfort on the Commute

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Last month, we covered a Specialized Patent titled “Bicycle Frame with Angled Strut”. Today’s announcement of the 2023 Specialized Sirrus Carbon proves we were very much mistaken in thinking it could materialize as their next-gen spring classics road racing bike. Indeed, the angled strut frame finds its home on a model historically pitted as a comfort commuter, though with clearance for 700c x 42mm tires, the new Sirrus makes a compelling argument for its re-appropriation as a flat-bar gravel bike.

With the 2023 Sirrus Carbon, Specialized has looked to combine performance and comfort into a lightweight, versatile package. They even made it look rad, too. Pricing starts at $2,250 USD.

The 2023 Specialized Sirrus X 5.0 Carbon retails at $2,250 USD

2023 Specialized Sirrus 6.0 Carbon and Sirrus X 5.0 Carbon

The 2023 Specialized Sirrus Carbon is a road- and gravel-worthy bicycle with a striking aesthetic thanks to what Specialized are referring to as the Compliance Junction. As the name suggests, it isn’t there to simply look cool; indeed, it is there to provide a little flex to the rear-end for improved forgiveness and comfort. We are told it does this without sacrificing performance and efficiency.

2023 specialized sirrus carbon x flex strut compliance junction

So, how much does it actually flex?

Well, an exact number of millimeters isn’t specified. However, if we look to the patent loosely pertaining to this frame design, we see that they tested the “Bicycle Frame with Angled Strut” to a vertical deflection of 7.9mm; that compares to the 2.9mm of vertical deflection they saw with the “conventional frame” that was tested alongside it. To learn more about the stiffness properties of the frame design in question, check out our coverage of the patent here.

2023 specialized sirrus carbon x compliant frame strut

There’s no getting around it; the 2023 Specialized Sirrus Carbon does look remarkably familiar. We simply can’t ignore the fact that a very similar frame design was very recently shown in the form of the Rondo Ruut V2 Carbon Gravel Bike. It too gets the “broken seat tube”, replaced by an angled strut that extends forward to meet the downtube, rather than the BB cluster. Specialized has pipped Rondo to the post, however, as the Ruut V2 won’t be available until later this year.

2023 specialized sirrus carbon 6

Where the Ruut V2 is a dedicated Gravel Bike with a drop-bar and (probably) clearance for higher volume tires, the Specialized Sirrus is more of an all-rounder, aimed at urban dwellers who want a bike that’s efficient enough for the daily commute, but not afraid to venture onto the gravel paths of the surrounding countryside.

2023 SPECIALIZED SIRRUS FUTURESHOCK HEADTUBE STEERER VIBRATION DAMPING

The Compliance Junction isn’t the only source of vibration damping on this frame. Just like their dedicated Gravel Frame, the Diverge, the 2023 Sirrus Carbon also boasts the Future Shock, a unique suspension design housed underneath the stem that works to prevent the harsh frequencies caused by bumps in the road from reaching the rider’s hands. Positioned above the head tube is a concealed spring that moves in a vertical path. Unlike regular front suspension, the Future Shock does not cause any changes in frame geometry or wheelbase.

unnamed file 666The 2023 Specialized Sirrus Carbon 6.0 retails at $3,000 USD

unnamed file 667This one comes with Roubaix Pro 32mm tires

The 2023 Sirrus Carbon is well-equipped for longer rides with opportunity to mount three water bottles to the front triangle polygon; one of the partial seat tube, a second on the downtube, and a third on the top-side of the top tube. The Sirrus is MIK compatible with mounting points for racks and fenders – in particular Specialized’s DRYTECH 42c fenders.

The Sirrus is available at two price points: $3,000 USD for the Sirrus 6.0, and $2,250 for the Sirrus X 5.0. They share the same carbon frame and fork, but differ on important spec like drivetrain, brakes and tires (specs below). Both are available in sizes XS-XXL, with the carbon layup of each frame tuned specifically such that the ride quality remains consistent no matter the size.

Reach stretches across a 350mm to 425mm range, with a consistent 440mm chainstay length on all frames. For a size guide on the Sirrus Carbon, head to the Specialized website.

2023 specialized sirrus carbon geometry

2023 Sirrus Carbon Frame Details

  • Frame Construction: Specialized FACT 9R Carbon, 12mm x 142mm thru-axle, Flat-Mount
  • Fork: Specialized FACT 9R Carbon Monocoque, 12mm x 100mm thru-axle, Flat-Mount, Low Rider Mounts, Plug + Play Rack/ Fender Mounts
  • Bottom Bracket: 68mm Threaded
  • Tire Clearance: 700c x 42mm (w/o fenders); 700c x 38mm with fenders
  • Seat Post: 27.2mm

Pricing & Availability

The 2023 Specialized Sirrus 6.0 retails at $3,000 USD, and is available in the Gloss Black / Pearl / Metallic White Silver / Black Reflective colorway only. The more affordable option is the Sirrus X 5.0 retailing at $2,250 USD, available in the Gloss White Mountains/ Gunmetal / Satin White Mtns Reflective colorway shown, or Satin Red Tint / Carbon / Black.

unnamed file 669

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78 COMMENTS

    • I hate to burst your bubble, but the 2023 Specialized Sirrus Carbon is overhyped. Its just another overpriced bike that wont make much of a difference in your daily commute. Save your money and stick to something more practical.

    • I hate to burst your bubble, but the 2023 Sirrus Carbon bikes are nothing special. Just another overpriced fad for the gullible. Save your money and get a bike that actually delivers on performance, not just style.

    • I couldnt agree more! The 2023 Specialized Sirrus Carbon is an absolute game-changer. Its sleek design and top-notch performance are bound to make your daily commute a breeze. Trust me, once you try it, youll never want to ride anything else. Enjoy the ride!

    • Sure, riding a bike may be a great alternative for some, but lets not dismiss the convenience and practicality of owning a car. Different needs, different preferences. Its not a competition, so lets respect everyones choices and enjoy the ride, be it on wheels or pedals.

  1. Wow, the new 2023 Specialized Sirrus Carbon sounds like a cozy ride for my morning coffee runs! Cant wait to try it out!

    • Sure, the Specialized Sirrus Carbon might look stylish, but lets not forget the practicality of a car. It provides shelter from bad weather, storage for groceries, and the ability to transport more than just yourself. Convenience and versatility matter too.

  2. I hate to burst your bubble, but those carbon struts are just a marketing gimmick. Theyll probably break within a week of your daily commute. Stick to a reliable steel frame and save yourself the headache.

    • I couldnt agree more! The 2023 Specialized Sirrus Carbon is truly a game-changer. The sleek design and advanced features make it a dream for commuters. Cant wait to ride it and leave all the traffic behind!

  3. 2023 Specialized Sirrus Carbon Struts its Stuff for Comfort on the Commute – Finally, a bike that makes my morning commute feel like a breezy joyride!

    2023 Specialized Sirrus 6.0 Carbon and Sirrus X 5.0 Carbon – Cant decide between these two beauties. Maybe Ill just get both?

    2023 Sirrus Carbon Frame Details – The devil is in the details, and these frames are devilishly sleek!

    Pricing & Availability – Wallet, prepare for a serious workout. These bikes are worth every penny!

  4. 2023 Specialized Sirrus Carbon Struts its Stuff for Comfort on the Commute – Finally, a bike that will make my daily commute feel like a spa day! #CommuterGoals

    2023 Specialized Sirrus 6.0 Carbon and Sirrus X 5.0 Carbon – Cant decide between these two beauties, might just have to buy both! #BikeObsessed

    2023 Sirrus Carbon Frame Details – Im no expert, but that carbon frame looks like it could survive a zombie apocalypse! #BuiltToLast

    Pricing & Availability – My wallet is crying, but my heart is saying, Treat yourself! #BikeAddict

    • I totally understand the appeal of a comfortable commute, but I cant help but think there are more affordable options out there. Splurging on two bikes seems a bit excessive, doesnt it? And surviving a zombie apocalypse might require more than just a carbon frame. Just my two cents.

    • I hate to burst your bubble, but Sirrus Carbon frames are notorious for being overpriced. Dont get your hopes up too high for the pricing. And as for availability, good luck finding one without having to sell a kidney.

    • I have to disagree. Carbon struts may enhance performance, but they do little for comfort. Ive tried similar setups, and theyre more about saving weight than providing a smooth ride. Dont get your hopes up too high.

  5. 2023 Specialized Sirrus Carbon Struts its Stuff for Comfort on the Commute – Great, now I can commute in style and comfort!
    2023 Specialized Sirrus 6.0 Carbon and Sirrus X 5.0 Carbon – Which one to choose? So many options, my head is spinning!
    2023 Sirrus Carbon Frame Details – The devil is in the details, and these frames are devilishly good!
    Pricing & Availability – Hope its not too pricey, or else Ill be commuting on foot!

    • I feel you! Choosing between the Sirrus 6.0 Carbon and Sirrus X 5.0 Carbon is definitely a tough call. But hey, at least well commute in style and comfort, right? Lets hope the devilishly good frames wont break the bank though. Happy commuting!

    • I hate to burst your bubble, but the 2023 Specialized Sirrus Carbon is overhyped. Its just another overpriced bike with fancy features. Save your money and stick to a trusted brand that wont leave you disappointed.

    • I completely disagree. The Specialized Sirrus Carbon bikes are overhyped. There are plenty of other brands out there with better features and value for money. Dont fall for the marketing gimmicks. Do your research before making a purchase.

    • I hate to burst your bubble, but the 2023 Specialized Sirrus Carbon is just another overhyped, overpriced bike. Save your money and go for something more practical. Trust me, you wont be missing out on anything groundbreaking.

  6. Wow, the new 2023 Specialized Sirrus Carbon sounds like the ultimate commuter bike! Cant wait to see the pricing and availability!

  7. 2023 Specialized Sirrus Carbon Struts its Stuff for Comfort on the Commute – Loving the sleek design and comfort features! Cant wait to hit the road in style.

    2023 Specialized Sirrus 6.0 Carbon and Sirrus X 5.0 Carbon – Who needs a car when youve got these badass bikes? Ready to conquer any terrain!

    2023 Sirrus Carbon Frame Details – These frames are absolute eye candy! Just looking at them makes me want to ride.

    Pricing & Availability – Hope my bank account is ready because I need one of these beauties ASAP!

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