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Specialized Sirrus 4.0 Fitness Road Bike (2023)

Sirrus 4.0 Fitness Road Bike (2023)

Regular price $1,349.99
Regular price $1,600.00 Sale price $1,349.99
Sale Sold out


Height (Cm) Size
142-152 44
152-163 48
158-163 50
163-170 52
170-178 54
175-180 56
180-188 58
188-196 61
196-205 64


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Shipped Free Direct to Your Home

Our Platinum Pro Assembly fee of only $89 (reg. $100) will be added at checkout. Your Specialized Bicycle will be built, fine-tuned and expertly packaged by our certified team of bike techs. Your new bike comes 90% built, reassembly is quick and easy with our video guides. Your new bike ships within 3-5 business days.

Pick Up the Sirrus 4.0 Fitness Road Bike (2023) in Store

$99 Ready to Ride

Bikes comes 100% built and ready to ride. This fee includes professional assembly & setup, one basic Master Service and free warranty processing. Shipped bikes are not charged this fee.


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Introducing the Specialized Sirrus 4.0 Fitness Road Bike (2023) - your ticket to conquering life's fast lane while having a blast! With a need for speed, a craving for adventure, and a desire to crush those fitness targets, Specialized has you covered with the Sirrus. This bike isn't just a ride; it's your trusty sidekick for wherever the road takes you.

The Sirrus boasts an ultralight aluminum alloy and carbon fiber build that's tougher than your determination. Shimano's reliable components, known to endure more than your daily coffee, are ready to face the pavement's challenges head-on. Rain or shine, those hydraulic disc brakes are your ace in the hole for stopping on a dime, while the Body Geometry touchpoints, designed to treat your body like royalty, make long rides feel like a breeze.

Feel the weight of the world melt away with the Carbon FACT 9r fork - not only does it caress your ride with comfort, but it also sheds a whopping 3 pounds (that's 1.2kg) compared to the Sirrus 2.0 model. Say goodbye to wobbly wheels and greet the precision of thru-axle hub connection and rub-free disc brakes. Shifting becomes a dance of intuition with the wide-range 2x10 Shimano components, making every gear change a seamless part of the rhythm.

So, lace up those sneakers and hop on the Sirrus 4.0 - your passport to a world of speed, style, and endless fitness FUN. It's not just a bike; it's your invitation to make life's journey an unforgettable adventure!


  • Carbon FACT 9r fork delivers comfort and saves nearly 3 pounds (1.2kg) over Sirrus 2.0 model.
  • Thru-axle hub connection for positive wheel alignment and no-rub disc brakes.
  • Wide-range 2x10 Shimano components for intuitive and precise shifting.
  • Specifications

    Frame Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts
    Fork Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5
    Tape Specialized Body Geometry Contour, lock-on
    Stem Future Stem, Comp
    Handlebars Double-butted alloy, 9-degree backsweep, 31.8mm
    Saddle Bridge Comp, Hollow Cr-mo rails, 155/143mm
    Seat Binder Bolt-type, 31.8mm
    SeatPost Alloy, 2-bolt, 14mm offset, 27.2mm
    Front Brake Shimano BR-MT200, hydraulic disc, 160mm
    Rear Brake Shimano BR-MT200, hydraulic disc, 160mm
    Cassette Shimano CS-HG500, 10-speed, 11-32t
    Shift Levers Shimano Tiagra, 10-speed w/ Optical Gear Display
    Rear Derailleur Shimano Tiagra, 10-speed
    Front Derailleur Shimano Tiagra FD-4700, Band-clamp
    Chainrings 48/32, chainguard
    Bottom Bracket Praxis M24, BSA
    Crankset Praxis Alba M24, solid forged arms, 6061 outer ring, steel inner ring, 110 BCD, 10-speed
    Chain KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™
    Front Tire RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
    Rear Tire RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
    Inner Tubes Presta, 48mm valve
    Rear Hub Alloy, 6-bolt disc, sealed cartridge bearings, high-low flange, 12x142mm thru-axle, 28h
    Front Hub Alloy, 6-bolt disc, sealed cartridge bearing, high-low flange, 12x100mm thru-axle, 24h
    700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
    Spokes Stainless, 14g
    Pedals Specialized Body Geometry Fitness, platform, plastic


    Crank Length 165 165 170 172.5 172.5 175
    Handlebar Width 580 580 600 600 620 620
    Stem Length 60 70 70 80 90 100
    Saddle Width 155 155 155 143 143 143
    Seatpost Length 300 300 350 350 400 400
    Stack 587 590 606 635 651 672
    Reach 355 371 376 382 386 398
    Head-Tube Length 111 125 143 169 186 208
    Head-Tube Angle 69.5 70 71 71 71 70
    B-B Height 284 284 284 284 284 284
    B-B Drop 70 70 70 70 70 70
    Trail 78 75 75 68 68 68
    Fork Length (full) 395 395 395 395 395 395
    Fork Rake/Offset 51 51 51 51 51 51
    Front-Center 602 618 629 634 644 663
    Chain-Stay Length 440 440 440 440 440 440
    Wheelbase 1033 1049 1060 1065 1074 1093
    Top-Tube Length (horizontal) 529 549 559 573 581 599
    Bike Stand-Over Height 722 750 778 810 831 700
    Seat-Tube Length 360 395 440 470 510 530
    Seat-Tube Angle 73.5 73.5 73.5 73.5 73.5 73.5
Due to continued shortages in the bicycle industry some components may be replaced with components of equal or higher value different than listed in specifications. We are working dilligently to update as changes are made by manufactures.