2025 Specialized Roubaix SL8 Expert 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
- +124 mm
- Longer: steadier at speed
- Head angle
- −0.9°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Specialized Roubaix SL8 Expert is drawn. The BMC Roadmachine 01 ONE numbers we have for size 47 are missing the reach, stack and chainstay length.
Geometry side by side
| Measurement | Specialized Roubaix SL8 Expert 54 | BMC Roadmachine 01 ONE 47 | Difference |
|---|---|---|---|
| Reach | 381 | not listed | |
| Stack | 585 | not listed | |
| Head tube angle | 72.3 | 71.4 | −0.9° |
| Seat tube angle | 74 | 74.2 | +0.2° |
| Effective top tube | 550 | not listed | |
| Chainstay length | 420 | not listed | |
| Wheelbase | 1005 | 1129 | +124 mm |
| BB drop | 78 | not listed | |
| BB height | 270 | not listed | |
| Standover | 766 | not listed | |
| Seat tube length | 465 | not listed | |
| Fork length | 375mm | not listed | |
| Head tube length | 122 | not listed |
Differences are the BMC Roadmachine 01 ONE minus the Specialized Roubaix SL8 Expert. Full charts: 2025 Specialized Roubaix SL8 Expert, 2026 BMC Roadmachine 01 ONE.
Where each sits in its class
Specialized Roubaix SL8 ExpertBMC 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 ExpertSL8 Expert | BMC Roadmachine 01 ONEONE |
|---|---|---|
| Frame | Specialized FACT 10R | BMC Roadmachine 01 |
| Fork | Specialized Future Shock 3.2 | not listed |
| Shifter | SRAM Rival ETAP AXS | Shimano Dura-Ace Di2 |
| Derailleur | SRAM Rival ETAP AXS | Shimano Dura-Ace Di2 |
| Cassette | SRAM XG1250 | Shimano Dura-Ace |
| Chain | SRAM Rival | Shimano XTR M9100 |
| Crankset | SRAM Rival AXS | Shimano Dura-Ace Di2 |
| Bottom bracket | SRAM DUB | Shimano SM-BB92-41B |
| Wheelset | Roval Terra C | BMC CE 40 SL |
| Tire | Specialized S-Works Mondo 2BR | Vittoria Corsa N.EXT |
| Brake | SRAM Rival | Shimano Dura-Ace Di2 |
| Handlebar | Specialized Hover Expert | 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 Expert | Selle Italia Novus Boost Evo Superflow |
| Chainring | not listed | Shimano Dura-Ace Di2 |
| Rotor | not listed | Shimano RT-CL900 |
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