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Specialized Sirrus X 4.0 Fitness Bike

Specialized Sirrus X 4.0 Fitness Bike

Regular price $1,279.99
Regular price $1,600.00 Sale price $1,279.99
Sale Sold out
YOU SAVE $320.01
20% OFF


Height (Cm) Size
5'1"-5'4" 49
5'4"-5'6" 52
5'6"-5'9" 54
5'9"-6'0" 56
6'0"-6'3" 58
6'3"-6'6" 61

Need help finding the perfect bike? Text or call Kathleen. 858-943-4229, Monday-Friday 8AM-5PM PST

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 Shipped 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 at Bicycle Warehouse

$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.

Bicycle Warehosue now offers optional Route Package Protection. Route Package Protection offers peace of mind for your shipments by providing shipping insurance. This coverage ensures that if your package is lost in transit, stolen, or damaged, you're protected. For a small percentage of the total value of your order, Route will promptly generate a replacement order or issue a refund if you no longer want the items.




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Introducing the Specialized Sirrus X 4.0 Fitness Road Bike – your all-access pass to a world of cycling adventures you never thought possible!

This bike is your ultimate companion, ready to tackle new horizons with a contagious 'let's conquer the world' attitude. Embrace comfort and capability as you pedal away on bigger, confidence-boosting tires, enjoy a slightly more upright riding stance, and effortlessly cruise with the super intuitive one-by drivetrain. Whether you're cruising the city streets or venturing onto gravel roads, the Sirrus X is your reliable partner. Say goodbye to discomfort with the cutting-edge Shared Platform Body Geometry saddle, grips, and pedals, scientifically designed to redefine your cycling experience.

Specialized has taken innovation to the next level by equipping the Sirrus X 4.0 with the game-changing Future Shock, ensuring a smooth ride even over the roughest terrain. Get ready to embrace the exhilarating world of cycling as you embark on a journey filled with bumps, potholes, and endless possibilities. It's time to embrace the vibrant life on two wheels – the Sirrus X is here to help you make it happen!


  • Future Shock 1.5 delivers 20mm of compliance to give maximum comfort and control over the rough stuff.
  • Added Carbon Fork and an A1 SL alloy frame delivers a build 1.6lb (.8kg) lighter than the 3.0 model–no heavy hybrid featuring a mountain style suspension fork comes close.
  • Wide-range 1x11 SRAM NX shifting delivers precise shifting for the long haul.



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


Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5


Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm


Future Stem, Comp


Specialized Neutralizer, Body Geometry, locking grip


Bridge Comp, Hollow Cr-mo rails, 155/143mm


Alloy, 2-bolt, 14mm offset, 27.2mm

Seat Binder

Bolt-type, 31.8mm

Front Brake

Tektro HD-R510, hydraulic disc, 160mm

Rear Brake

Tektro HD-R510, hydraulic disc, 160mm

Shift Levers

SRAM NX, 11-speed

Rear Derailleur

SRAM NX, 11-speed


SRAM PG-1130, 11-speed, 11-42t


Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide Aluminum chainring



Bottom Bracket

Threaded BSA 68mm, 24mm spindle


KMC X11, 11-speed w/ Missing Link™


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

Front Hub

Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x100mm spacing, 24H

Rear Hub

Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x142mm spacing, 28H

Front Tire

Pathfinder Sport, 700x38mm

Rear Tire

Pathfinder Sport, 700x38mm

Inner Tubes

700x28/38mm, 48mm Presta valve


Stainless, 14g


Specialized Body Geometry Fitness, platform, plastic


Crank Length 165mm 165mm 170mm 170mm 175mm 175mm
Handlebar Width 680mm 680mm 680mm 680mm 680mm 680mm
Stem Length 60mm 60mm 70mm 80mm 90mm 100mm
Saddle Width 155mm 155mm 155mm 143mm 143mm 143mm
Seatpost Length 300mm 300mm 350mm 350mm 400mm 400mm
Stack 587mm 590mm 606mm 635mm 651mm 672mm
Reach 355mm 371mm 376mm 382mm 386mm 398mm
Head-Tube Length 111mm 125mm 143mm 169mm 186mm 208mm
Head-Tube Angle 69.5° 70° 70° 71° 71° 71°
B-B Height 284mm 284mm 284mm 284mm 284mm 284mm
B-B Drop 70mm 70mm 70mm 70mm 70mm 70mm
Trail 78mm 75mm 75mm 68mm 68mm 68mm
Fork Length (full) 395mm 395mm 395mm 395mm 395mm 395mm
Fork Rake/Offset 51mm 51mm 51mm 51mm 51mm 51mm
Front-Center 602mm 618mm 629mm 634mm 644mm 663mm
Chain-Stay Length 440mm 440mm 440mm 440mm 440mm 440mm
Wheelbase 1033mm 1049mm 1060mm 1065mm 1074mm 1093mm
Top-Tube Length (horizontal) 529mm 549mm 559mm 573mm 581mm 599mm
Bike Stand-Over Height 700mm 722mm 750mm 778mm 810mm 831mm
Seat-Tube Length 360mm 395mm 440mm 470mm 510mm 530mm
Seat-Tube Angle 73.5° 73.5° 73.5° 73.5° 73.5° 73.5°