2025 Specialized Roubaix SL8 Sport vs 2026 BMC Roadmachine 01 ONE
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the BMC Roadmachine 01 ONE
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Specialized Roubaix SL8 Sport is drawn. The BMC Roadmachine 01 ONE numbers we have for size 54 are missing the reach, stack, chainstay length and wheelbase.
Geometry side by side
| Measurement | Specialized Roubaix SL8 Sport 56 | BMC Roadmachine 01 ONE 54 | Difference |
|---|---|---|---|
| Reach | 389mm | not listed | |
| Stack | 605mm | not listed | |
| Head tube angle | 73° | 72.2 | −0.8° |
| Seat tube angle | 73.5° | 74.2 | +0.7° |
| Effective top tube | 569mm | not listed | |
| Chainstay length | 420mm | not listed | |
| Wheelbase | 1012mm | not listed | |
| BB drop | 78mm | 76 | −2 mm |
| BB height | 270mm | not listed | |
| Standover | 787mm | not listed | |
| Seat tube length | 485mm | not listed | |
| Fork length | 375mm | not listed | |
| Head tube length | 140mm | not listed |
Differences are the BMC Roadmachine 01 ONE minus the Specialized Roubaix SL8 Sport. Full charts: 2025 Specialized Roubaix SL8 Sport, 2026 BMC Roadmachine 01 ONE.
Where each sits in its class
Specialized Roubaix SL8 SportBMC Roadmachine 01 ONE
Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Roubaix SL8 SportSL8 Sport | BMC Roadmachine 01 ONEONE |
|---|---|---|
| Fork | Specialized Future Shock 3.1 | not listed |
| Shifter | Shimano 105 R7120 | Shimano Dura-Ace Di2 |
| Derailleur | Shimano 105, Shimano 105 R7100 mechanical | Shimano Dura-Ace Di2 |
| Cassette | Shimano 105 | Shimano Dura-Ace |
| Chain | Shimano 105 | Shimano XTR M9100 |
| Crankset | Shimano 105 | Shimano Dura-Ace Di2 |
| Wheelset | DT Swiss G540 | BMC CE 40 SL |
| Tire | Specialized S-Works Mondo 2BR | Vittoria Corsa N.EXT |
| Brake | Shimano 105 | Shimano Dura-Ace Di2 |
| Handlebar | Specialized Hover | BMC ICS Carbon Evo |
| Stem | Specialized Future | BMC ICS Carbon Evo |
| Seatpost | Specialized S-Works Pave Seat post | BMC Roadmachine 01 D-shaped |
| Saddle | Specialized Power Sport | Selle Italia Novus Boost Evo Superflow |
| Frame | not listed | BMC Roadmachine 01 |
| Chainring | not listed | Shimano Dura-Ace Di2 |
| Bottom bracket | not listed | Shimano SM-BB92-41B |
| Rotor | not listed | Shimano RT-CL900 |
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