Seatpost wedge / binder
Carbon paste per manual; do not grease carbon seat tube.
6.2 Nm
54.9 in·lb
4 mm hex
Specialized · Road · 7 sizes
$7,000
Kit weight not published
https://www.specialized.com/us/en/s-works-roubaix-sl8-shimano-dura-ace-di2/p/4221817
Kit weight and list price per size. Gaps stay blank.
Best in-stock in CAD. Affiliate links may earn a commission.
| Retailer | Price | Stock | Link |
|---|---|---|---|
| Survey list (CAD) | $6,999.99 | In stock | Buy |
Tap + Compare under each size to queue several of this bike.
44 | 49 | 52 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|---|
| Stack | 543 mm | 549 mm | 566 mm | 585 mm | 605 mm | 630 mm | 665 mm |
| Reach | 353 mm | 363 mm | 370 mm | 381 mm | 389 mm | 397 mm | 403 mm |
| Stack / Reach | 1.54 | 1.51 | 1.53 | 1.53 | 1.55 | 1.59 | 1.65 |
| Head tube angle | 69.3° | 70.8° | 71.5° | 72.3° | 73° | 73° | 73.5° |
| Seat tube angle (effective) | 75° | 74° | 74° | 74° | 73.5° | 73.5° | 73.5° |
| Seat tube angle (actual) | — | — | — | — | — | — | — |
| Top tube (effective) | 503 mm | 523 mm | 534 mm | 550 mm | 569 mm | 584 mm | 600 mm |
| Head tube length | 90 mm | 90 mm | 105 mm | 122 mm | 140 mm | 168 mm | 202 mm |
| Seat tube length | 365 mm | 410 mm | 445 mm | 465 mm | 485 mm | 505 mm | 545 mm |
| Bottom bracket drop | 80 mm | 80 mm | 80 mm | 78 mm | 78 mm | 78 mm | 78 mm |
| Bottom bracket height | 269 mm | 269 mm | 269 mm | 270 mm | 270 mm | 271 mm | 271 mm |
| Chainstay | 418 mm | 418 mm | 418 mm | 420 mm | 420 mm | 423 mm | 423 mm |
| Front center | 593 mm | 598 mm | 604 mm | 620 mm | 631 mm | 589 mm | 587 mm |
| Wheelbase | 992 mm | 988 mm | 1005 mm | 1012 mm | 1031 mm | 1042 mm | 994 mm |
| Fork rake (offset) | 52 mm | 52 mm | 52 mm | 47 mm | 47 mm | 47 mm | 47 mm |
| Fork axle to crown | 375 mm | 375 mm | 375 mm | 375 mm | 375 mm | 375 mm | 375 mm |
| Trail | 76 mm | 66 mm | 62 mm | 61 mm | 57 mm | 57 mm | 54 mm |
| Standover | 686 mm | 719 mm | 747 mm | 766 mm | 787 mm | 809 mm | 847 mm |
| Pad / effective stack | — | — | — | — | — | — | — |
| Pad / effective reach | — | — | — | — | — | — | — |
Specialized · seat-wedge frames — Typical values from Specialized road user manuals (e.g. Roubaix / Aethos / Tarmac). Printed wedge / axle markings win when present.
Seatpost wedge / binder
Carbon paste per manual; do not grease carbon seat tube.
6.2 Nm
54.9 in·lb
4 mm hex
Front thru-axle
15 Nm
132.8 in·lb
6 mm hex
Rear thru-axle
15 Nm
132.8 in·lb
6 mm hex
Bottle cage
2.8 Nm
24.8 in·lb
3 mm hex
Derailleur hanger
4.5 Nm
39.8 in·lb
4 mm hex
| 61 |
| 403 |
| 665 |
| — |
| $7,000 |
Stem @ steerer (Future Stem / common)
Confirm printed stem / bar specs when they disagree.
5 Nm
44.3 in·lb
4 mm hex
https://media.specialized.com/support/collateral/0000134021.pdfcaptured 2026-07-24. Printed part specs always win.