2025
2025 Specialized Sirrus X 4.0
The 2025 Specialized Sirrus X 4.0 sits at the upright end of the range for a commuter bike. Reach 355 to 398 mm, stack 587 to 672 mm. The Sirrus X 4.0 build comes with Shimano CUES U6000 Shadow shifting and Specialized Pathfinder Sport tires.
Source: specialized.com. Checked .
Key facts
- Brand
- Specialized
- Model
- Sirrus X
- Model year
- 2025
- Frame
- 4.0
- Type
- Commuter
- Geometry labels
- XXS, XS, S, M, L, and XL
- Drivetrain
- Shimano CUES U6000 Shadow
- Geometry
- Complete for every size
- Source
- specialized.com
- Checked
Geometry by size
| Measurement | XXS | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Reach(mm) | 355 | 371 | 376 | 382 | 386 | 398 |
| Stack(mm) | 587 | 590 | 606 | 635 | 651 | 672 |
| 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) | 529 | 549 | 559 | 573 | 581 | 599 |
| Chainstay length(mm) | 440 | 440 | 440 | 440 | 440 | 440 |
| Wheelbase(mm) | 1033 | 1049 | 1060 | 1065 | 1074 | 1093 |
| BB drop(mm) | 70 | 70 | 70 | 70 | 70 | 70 |
| BB height(mm) | 284 | 284 | 284 | 284 | 284 | 284 |
| Standover(mm) | 700 | 722 | 750 | 778 | 810 | 831 |
| Seat tube length(mm) | 360 | 395 | 440 | 470 | 510 | 530 |
| Fork length(mm) | 395 (from the manufacturer) | 395 (from the manufacturer) | 395 (from the manufacturer) | 395 (from the manufacturer) | 395 (from the manufacturer) | 395 (from the manufacturer) |
| Head tube length(mm) | 111 | 125 | 143 | 169 | 186 | 208 |
✓Sources agreeMManufacturer
Stock build
16 parts
Frame
Specialized A1 SL
Suspension
Specialized FACT 9r
Drivetrain
Shimano CUES U6000
Shimano CUES U6000 Shadow
Shimano CS-LG400-11
KMC eGlide
42T
Specialized Body Geometry Fitness
Wheels & Tires
Brakes
Tektro HD-R510
Tektro HD-R510
Cockpit
Specialized Future
Seatpost & Saddle
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MManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2025 Specialized Sirrus X 4.0?
- Geometry is listed for 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 on Quiver?
- Quiver has the Specialized Sirrus X for 2025, 2026, 2024, 2023, 2022, 2021, 2020, and 2019.
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