Rear tire: 700C×28.
Velopedia Bicycle Archive
2021 Specialized Roubaix Comp
Original specifications: geometry for 8 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2021
- Category
- Road
- Original MSRP
- $4,200.00
- Sizes
- 44, 49, 52, 54, 56, 58, 61, 64
- Colors
- Gloss Clay/Chameleon, Satin Smoke/Carbon/Black, Gloss Ice Blue/Dove Grey/Cool Grey
- Geometry
- 8 manufacturer sizes
- In this record
- 18 specifications · 8 archived images · original MSRP · geometry
- Archive ID
- 900004224
Model history 4 other years
Original buildCarbon Fiber
Frameset
| Frame Construction | FACT 10R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Future Shock 1.5 w/ Smooth Boot, 12x100mm thru-axle, flat-mount disc |
Drivetrain
| Shifters | Shimano Ultegra Disc R8020 |
|---|---|
| Front Derailleur | Shimano Ultegra R8000, braze-on |
| Rear Derailleur | Shimano Ultegra RX800, 11-speed |
| Crankset | Shimano Ultegra R8000, HollowTech 2, 11-speed; chainrings: 50/34T |
| Bottom Bracket | Shimano Threaded BSA BB |
| Cassette | Shimano Ultegra, 11-speed, 11-34t |
| Chain | Shimano Ultegra, 11-speed |
Brakes
| Brakes | (F) Shimano Ultegra R8070, hydraulic disc / (R) Shimano Ultegra R8070, hydraulic disc |
|---|
Cockpit & Contact Points
| Handlebar | Specialized Hover Comp, Alloy, 125mm Drop, 75mm Reach w/Di2 Hole |
|---|---|
| Stem | Future Stem, Comp, w/Integrated computer mount |
| Saddle | Body Geometry Power Comp, Cromoly rails |
| Seatpost | S-Works Pave |
Wheels & Tires
| Wheels | (F) DT Swiss R470 rim, 20mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples. / (R) DT Swiss R470 rim, 20mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, alloy freehub body, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples. |
|---|---|
| Front Tire | Specialized Turbo Pro, 700x28mm |
| Rear Tire | Specialized Turbo Pro, 700x28mm |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements8 sizes · 20 measurements
| Measurement | 44 | 49 | 52 | 54 | 56 | 58 | 61 | 64 |
|---|---|---|---|---|---|---|---|---|
| Seat tube | 365 mm | 410 mm | 446 mm | 465 mm | 485 mm | 505 mm | 547 mm | 568 mm |
| Effective top tube | 512 mm | 525 mm | 533 mm | 545 mm | 563 mm | 579 mm | 595 mm | 609 mm |
| Head tube | 90 mm | 100 mm | 112 mm | 125 mm | 143 mm | 170 mm | 205 mm | 215 mm |
| Head-tube angle | 70° | 71.5° | 72° | 72.75° | 73.5° | 73.5° | 74° | 74° |
| Seat-tube angle | 74° | 74° | 74° | 74° | 73.5° | 73.5° | 73.5° | 73° |
| Chainstay / rear center | 413 mm | 413 mm | 413 mm | 415 mm | 415 mm | 418 mm | 418 mm | 418 mm |
| Wheelbase | 981 mm | 982 mm | 986 mm | 988 mm | 995 mm | 1014 mm | 1024 mm | 1033 mm |
| Bottom-bracket drop | 77.5 mm | 77.5 mm | 77.5 mm | 76 mm | 76 mm | 74.5 mm | 74.5 mm | 74.5 mm |
| Bottom-bracket height | 265 mm | 265 mm | 265 mm | 266 mm | 266 mm | 268 mm | 268 mm | 268 mm |
| Reach | 353 mm | 363 mm | 368 mm | 376 mm | 384 mm | 392 mm | 398 mm | 404 mm |
| Stack | 540 mm | 555 mm | 570 mm | 585 mm | 605 mm | 630 mm | 665 mm | 675 mm |
| Standover height | 682 mm | 715 mm | 743 mm | 762 mm | 783 mm | 805 mm | 844 mm | 862 mm |
| Fork offset / rake | 50 mm | 50 mm | 50 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 580 mm | 581 mm | 586 mm | 585 mm | 592 mm | 607 mm | 618 mm | 626 mm |
| Trail | 71 mm | 62 mm | 59 mm | 61 mm | 55 mm | 55 mm | 52 mm | 52 mm |
| Fork length / axle-to-crown | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm |
| Seatpost length | 380 mm | 380 mm | 380 mm | 380 mm | 380 mm | 380 mm | 450 mm | 450 mm |
| Crank length | 165 mm | 165 mm | 170 mm | 172.5 mm | 172.5 mm | 175 mm | 175 mm | 175 mm |
| Stem length | 70 mm | 80 mm | 90 mm | 100 mm | 100 mm | 110 mm | 110 mm | 120 mm |
| Handlebar width | 360 mm | 380 mm | 400 mm | 420 mm | 420 mm | 440 mm | 440 mm | 440 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Parts & serviceability
Find replacement parts

Shimano SLX/105 CN-HG601 11-Speed Chain Grey, 126 Links
126 Links
Replacement option · verify fit

Shimano Ultegra CS-HG800 11-Speed Cassette Gray, 11x34
11x34

Challenge Strada Pro Tubeless Tire Black, 700x28
700x28
Replacement option · verify fit

Specialized SW Mondo 2Bliss Tire Black, 700x28
700x28
Replacement option · verify fit
More parts (6)

Shimano XT BB-MT801 Bottom Bracket BSA Threaded, One Size
One Size
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2021 Specialized Roubaix Comp · Road · Published sizes: 44, 49, 52, 54, 56, 58, 61, 64
Frame and fork
Inspect the frame and fork →Archived: Frame: FACT 10R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc · Fork: Future Shock 1.5 w/ Smooth Boot, 12x100mm thru-axle, flat-mount disc
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Ultegra Disc R8020 · Front derailleur: Shimano Ultegra R8000, braze-on · Rear derailleur: Shimano Ultegra RX800, 11-speed · Crankset: Shimano Ultegra R8000, HollowTech 2, 11-speed; chainrings: 50/34T · Bottom bracket: Shimano Threaded BSA BB · Cassette: Shimano Ultegra, 11-speed, 11-34t · Chain: Shimano Ultegra, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: (F) Shimano Ultegra R8070, hydraulic disc / (R) Shimano Ultegra R8070, hydraulic disc
Wheels and tires
Check wheels and tires →Archived: Front tire: Specialized Turbo Pro, 700x28mm · Rear tire: Specialized Turbo Pro, 700x28mm
Controls and contact points
Archived: Handlebar: Specialized Hover Comp, Alloy, 125mm Drop, 75mm Reach w/Di2 Hole · Stem: Future Stem, Comp, w/Integrated computer mount · Seatpost: S-Works Pave · Saddle: Body Geometry Power Comp, Cromoly rails
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help preserve its real-world history by sharing your owner experience.
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Gallery8 images
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





