2018
2018 Specialized Roubaix Expert
The 2018 Specialized Roubaix Expert sits at the upright end of the range for a road bike, with a longer rear center. Reach 369 to 392 mm, stack 549 to 665 mm. The Roubaix Expert build comes with Shimano Ultegra R8000 shifting and Roval SLX 24 wheels.
Source: specialized.com. Checked .
Key facts
- Brand
- Specialized
- Model
- Roubaix
- Model year
- 2018
- Frame
- Expert
- Type
- Road
- Geometry labels
- 49, 52, 54, 56, 58, and 61
- Drivetrain
- Varies by build
- Wheels
- Roval SLX 24
- Geometry
- Complete for every size
- Source
- specialized.com
- Checked
Geometry by size
| Measurement | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Reach(mm) | 369 | 371 | 375 | 381 | 386 | 392 |
| Stack(mm) | 549 | 569 | 585 | 611 | 644 | 665 |
| Head tube angle(°) | 72 | 72.25 | 72.75 | 73.5 | 73.5 | 74 |
| Seat tube angle(°) | 74 | 74 | 74 | 73.5 | 73.5 | 73.5 |
| Effective top tube(mm) | 527 | 534.9 | 545 | 561.8 | 576.3 | 588.5 |
| Chainstay length(mm) | 413 | 413 | 415 | 415 | 418 | 418 |
| Wheelbase(mm) | 981 | 987 | 987 | 993 | 1011 | 1018 |
| BB drop(mm) | 77.5 | 77.5 | 76 | 76 | 74.5 | 74.5 |
| Standover(mm) | 715.5 | 743 | 762 | 785 | 813 | 844.3 |
| Seat tube length(mm) | 425 | 462 | 481 | 501 | 522 | 563 |
| Head tube length(mm) | 90 | 110 | 125 | 150 | 185 | 205 |
Stock build
Roubaix Expert
Drivetrain
Shimano Ultegra R8020
Shimano Ultegra R8000
Shimano Ultegra
Shimano Ultegra R8000
Wheels & Tires
Brakes
Shimano Ultegra R8020
Cockpit
Seatpost & Saddle
Keep your Roubaix Expert in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
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Roubaix Expert Ultegra Di2
Drivetrain
Shimano Ultegra R8000
KMC X11 EL
Shimano Ultegra R8000
Wheels & Tires
Brakes
Shimano Ultegra R8070 Di2
Cockpit
Seatpost & Saddle
Keep your Roubaix Expert Ultegra Di2 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
MManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2018 Specialized Roubaix Expert?
- Geometry is listed for 49, 52, 54, 56, 58, and 61.
- What are the reach and stack of the 2018 Specialized Roubaix Expert in size 56?
- In size 56, reach is 381 mm and stack is 611 mm.
- What is the head tube angle of the 2018 Specialized Roubaix Expert?
- The head tube angle is 73.5 degrees in size 56.
- What does the 2018 Specialized Roubaix Expert ship with?
- The stock build includes Shimano Ultegra R8020, Roval SLX 24, Shimano Ultegra R8020, and Specialized Expert Hover.
- Which years of the Specialized Roubaix are on Quiver?
- Quiver has the Specialized Roubaix for 2018, 2027, 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2017, 2016, 2015, 2014, 2012, 2011, 2010, 2009, 2008, and 2007.
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