Roubaix 2026
Roubaix SL8 Expert
The 2026 Specialized Roubaix SL8 Expert is a road bike offered in 8 sizes, 44 to 64. Reach runs from 353 to 409 mm and stack from 543 to 685 mm. It ships with Shimano Ultegra R8150 and Roval C38.
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
- Roubaix
- Model year
- 2026
- Frame
- SL8 Expert
- Type
- Road
- Sizes
- 44, 49, 52, 54, 56, 58, 61, and 64
- Verified measurements
- 88 of 88
- Last checked
2026 Specialized Roubaix SL8 Expert drawn to scale
2026 Specialized Roubaix SL8 Expert geometry by size
| Measurement | 44 | 49 | 52 | 54 | 56 | 58 | 61 | 64 |
|---|---|---|---|---|---|---|---|---|
| Reach(mm) | 353mm | 363mm | 370mm | 381mm | 389mm | 397mm | 403mm | 409mm |
| Stack(mm) | 543mm | 549mm | 566mm | 585mm | 605mm | 630mm | 665mm | 685mm |
| Head tube angle(°) | 69.3° | 70.8° | 71.5° | 72.3° | 73° | 73° | 73.5° | 73.5° |
| Seat tube angle(°) | 75° | 74° | 74° | 74° | 73.5° | 73.5° | 73.5° | 73° |
| Effective top tube(mm) | 503mm | 523mm | 534mm | 550mm | 569mm | 584mm | 600mm | 618mm |
| Chainstay length(mm) | 418mm | 418mm | 418mm | 420mm | 420mm | 423mm | 423mm | 423mm |
| Wheelbase(mm) | 994mm | 992mm | 998mm | 1005mm | 1012mm | 1031mm | 1042mm | 1054mm |
| BB drop(mm) | 80mm | 80mm | 80mm | 78mm | 78mm | 78mm | 78mm | 78mm |
| BB height(mm) | 269mm | 269mm | 269mm | 270mm | 270mm | 271mm | 271mm | 271mm |
| Seat tube length(mm) | 365mm | 410mm | 446mm | 465mm | 485mm | 505mm | 545mm | 581mm |
| Head tube length(mm) | 90mm | 90mm | 105mm | 122mm | 140mm | 168mm | 202mm | 222mm |
Last checked .
2026 Specialized Roubaix stock build
19 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 2026 Specialized Roubaix SL8 Expert come in?
It comes in 8 sizes: 44, 49, 52, 54, 56, 58, 61, and 64.
What are the reach and stack of the 2026 Specialized Roubaix SL8 Expert in size 56?
In size 56, reach is 389 mm and stack is 605 mm.
What is the head tube angle of the 2026 Specialized Roubaix SL8 Expert?
The head tube angle is 73 degrees in size 56.
What does the 2026 Specialized Roubaix SL8 Expert ship with?
The stock build includes Specialized Roubaix, Specialized Future Shock, Shimano Ultegra R8170, and Roval C38.
Which years of the Specialized Roubaix are in the catalog?
The catalog has the Specialized Roubaix for 2026 and 2023.
Other frames of the 2026 Roubaix
Other years of the Roubaix
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