Sirrus X 2025
Sirrus X 4.0
The 2025 Specialized Sirrus X 4.0 is a commuter bike offered in 6 sizes, XXS to XL. Reach runs from 355 to 398 mm and stack from 587 to 672 mm. It ships with Shimano CUES U6000 and Specialized Pathfinder Sport.
Every number on this page was confirmed by at least two independent sources. Where the catalog cannot yet stand behind a figure, the cell says so instead of guessing.
Key facts
- Brand
- Specialized
- Model
- Sirrus X
- Model year
- 2025
- Frame
- 4.0
- Type
- Commuter
- Sizes
- XXS, XS, S, M, L, and XL
- Verified measurements
- 60 of 60
- Last checked
2025 Specialized Sirrus X 4.0 drawn to scale
2025 Specialized Sirrus X 4.0 geometry by size
| Measurement | XXS | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Reach(mm) | 355mm | 371mm | 376mm | 382mm | 386mm | 398mm |
| Stack(mm) | 587mm | 590mm | 606mm | 635mm | 651mm | 672mm |
| Head tube angle(°) | 69.5° | 70° | 70° | 71° | 71° | 71° |
| Seat tube angle(°) | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
| Effective top tube(mm) | 529mm | 549mm | 559mm | 573mm | 581mm | 599mm |
| Chainstay length(mm) | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
| Wheelbase(mm) | 1033mm | 1049mm | 1060mm | 1065mm | 1074mm | 1093mm |
| Standover(mm) | 700mm | 722mm | 750mm | 778mm | 810mm | 831mm |
| Seat tube length(mm) | 360mm | 395mm | 440mm | 470mm | 510mm | 530mm |
| Head tube length(mm) | 111mm | 125mm | 143mm | 169mm | 186mm | 208mm |
Last checked .
2025 Specialized Sirrus X stock build
15 parts. Specs shown only where two or more sources agree.
Frame
Suspension
Drivetrain
Wheels & Tires
Brakes
Cockpit
Seatpost & Saddle
Quick answers
What sizes does the 2025 Specialized Sirrus X 4.0 come in?
It comes in 6 sizes: XXS, XS, S, M, L, and XL.
What are the reach and stack of the 2025 Specialized Sirrus X 4.0 in size M?
In size M, reach is 382 mm and stack is 635 mm.
What is the head tube angle of the 2025 Specialized Sirrus X 4.0?
The head tube angle is 71 degrees in size M.
What does the 2025 Specialized Sirrus X 4.0 ship with?
The stock build includes Specialized A1 SL, Specialized FACT 9r, Shimano CUES U6000, and Specialized Pathfinder Sport.
Which years of the Specialized Sirrus X are in the catalog?
The catalog has the Specialized Sirrus X for 2025.
Ride a Sirrus X? Keep it in your garage.
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