Specialized Roubaix
Endurance road · 7 sizes
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- Bike
- Specialized Roubaix · Endurance road · 7 sizes
- Versions
- 2020, this table · 2018
- Geometry
- specialized.com, fetched 20 Oct 2026, re-checked, no differences
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 22 October 2026 · 686 bikes, 74 makes, 3,984 sizes in the catalogue
Geometry, every size, from the maker's table
The tinted row is the size drawn beside it. Press a size to draw it.| Size | Stack (mm) | Reach (mm) | Head angle (deg) | Seat angle (deg) | Head tube (mm) | Chainstay (mm) | Wheelbase (mm) | Standover (mm) |
|---|---|---|---|---|---|---|---|---|
| 44 | 540 | 353 | 70 | 74 | 90 | 413 | 981 | 682 |
| 49 | 555 | 363 | 71.5 | 74 | 100 | 413 | 982 | 715 |
| 52 | 570 | 368 | 72 | 74 | 112 | 413 | 986 | 743 |
| 54 | 585 | 376 | 72.75 | 74 | 125 | 415 | 988 | 762 |
| 56 | 605 | 384 | 73.5 | 73.5 | 143 | 415 | 995 | 783 |
| 58 | 630 | 392 | 73.5 | 73.5 | 170 | 418 | 1014 | 805 |
| 61 | 665 | 398 | 74 | 73.5 | 205 | 418 | 1024 | 844 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The 54 drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.
The maker's cockpit
No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.Generic stem and barAssumedNo bar is listed for this frame.
Stock stem and bar per size44 70 x 360, 49 80 x 380, 52 90 x 400, 54 100 x 420, 56 100 x 420, 58 110 x 440, 61 110 x 440 (stem length x bar width, mm)
Frame facts
not read off the maker's page yet: specialized.com- Tyre clearance
- not recorded yet
- Bottom bracket
- not recorded yet
- Axles and brakes
- not recorded yet
- UDH
- not recorded yet
- Seatpost
- not recorded yet
- Frame weight
- not recorded yet
In the maker's words
Kept whole, as I read it off specialized.com.This archived GB page carries the geometry table but no spec block; the table gives the stock stem length (70/80/90/100/100/110/110 mm) and bar width (360/380/400/420/420/440/440 mm) per size.
Cockpit and seatpost, in the maker's words · 40 words
This archived GB page carries the geometry table but no spec block; the table gives the stock stem length (70/80/90/100/100/110/110 mm) and bar width (360/380/400/420/420/440/440 mm) per size. No bar or stem name, angle, reach or drop is printed here.
OFFICIAL SOURCE: Specialized GB page for the Roubaix Comp - Shimano Ultegra Di2 (code 170243), page JSON modelYear 2020. Source: html table (official Specialized GB product page for the Roubaix Comp - Shimano Ultegra Di2, code 170243, the "Geometry" HTML table in the page; fetched 2026-10-20
How I read the maker's table
The Roubaix between the MY2018 frame (specialized-roubaix-2018.json) and the Roubaix SL8 (specialized-roubaix-sl8.json). Seven sizes 44, 49, 52, 54, 56, 58, 61; Bike Insights' MY2020 and MY2022 entries for this frame add a 64. Values printed with mm and degree suffixes, stripped by script.
Source: html table (official Specialized GB product page for the Roubaix Comp - Shimano Ultegra Di2, code 170243, the "Geometry" HTML table in the page; fetched 2026-10-20, HTTP 200)