Specialized Sirrus 3.0 Step-Through EQ

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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. Sirrus features a super light Aluminum Alloy construction, as well as a reliable Shimano components that are built to withstand years of daily abuse on the world's pavement. Powerful hydraulic disc brakes provide reliable stopping power in any condition, and comfortable, ergonomically designed Body Geometry touchpoints are there to take the sting out of longer rides. 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.

  • Lightweight A1 Alloy frame with 42c tires clearance, clean internal cable routing and mounting points for a range of accessories give maximum flexibility.
  • Wide-range 2x10 Shimano Tiagra Road components for intuitive and precise shifting.
  • Lightweight 2-piece crank for years of performance.
  • Racktime rack for your favorite bags and panniers, and integrated DRYTECH fenders to keep the spray away.
  • Extra-bright front and rear lighting powered by a Shimano Dynamo hub to see and be seen.


FrameSpecialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
ForkA1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
HandlebarsDouble-butted alloy, 9-degree backsweep, 31.8mm
TapeSpecialized Body Geometry Contour, lock-on
SaddleBridge Sport, Steel rails, 155/143mm
Seat BinderBolt-type, 31.8mm
Front BrakeTektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm
Rear BrakeTektro HD-R280, hydraulic disc, resin pads, flat-mount, 140mm
Shift LeversShimano Tiagra, 10-speed w/ Optical Gear Display
Front DerailleurShimano Tiagra FD-4700, Band-clamp
Rear DerailleurShimano Tiagra, 10-speed
ChainKMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™
CassetteShimano Tiagra, 10-speed, 11-34t
CranksetForged aluminum arms, 2-piece, 24mm spindle, steel chainrings
Chainrings48/32 w/ chainguard
Bottom BracketBSA for 24mm spindle
PedalsSpecialized Body Geometry Fitness, platform, plastic
Rims700C disc brake, double-wall alloy, 22mm depth, 21mm internal width
Front HubShimano Dynamo, 6-bolt disc, 100mm spacing, quick-release, 32h
Rear HubAlloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h
SpokesStainless, 14g
Front TireNimbus II Sport Reflect, 700x38mm
Rear TireNimbus II Sport Reflect, 700x38mm
SeatPostAlloy, 12mm offset, 2-bolt clamp, 27.2mm
Inner Tubes700x28/38mm, 48mm Presta valve
HeadlightHerrmans H-Black MR8, Dynamo
TaillightHerrmans H-Trace Mini, Dynamo
ChaincaseIncluded w/CRANK SET
KickstandCenter-mount, alloy
RackSirrus EQ Rack, Direct Fender Mount, Racktime compatible, 15kg
FendersSpecialized DRYTECH, Aluminum
BellSpecialized Alloy Dome Bell
Colours Satin Smoke / Black Reflective
Sizes M, S, XS
Brand Specialized
Model Year 2023
Barcodes 888818723553, 888818723584, 888818723706
SKUs / Part Numbers 90921-7301, 90921-7302, 90921-7303

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Size XS S M
B-B Drop 70 70 70
B-B Height 272 272 272
Bike Stand-Over Height 620 620 625
Chain-Stay Length 440 440 440
Fork Length (full) 395 395 395
Fork Rake/Offset 51 51 51
Front-Center 628 637 646
Head-Tube Angle 70 70 71
Head-Tube Length 139 147 175
Reach 393 400 408
Seat-Tube Angle 73.5 73.5 73.5
Seat-Tube Length 395 450 500
Stack 555 563 593
Top-Tube Length (horizontal) 557 567 584
Trail 70 70 64
Wheelbase 1058 1068 1077