2026 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
- n/a
- One of the bikes has no number for this
- Head angle
- −0.1°
- About the same head angle
- 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 58 are missing the reach, stack, chainstay length and wheelbase.
Geometry side by side
| Measurement | Specialized Roubaix SL8 Expert 54 | BMC Roadmachine 01 ONE 58 | Difference |
|---|---|---|---|
| Reach | 381 | not listed | |
| Stack | 585 | not listed | |
| Head tube angle | 72.3 | 72.2 | −0.1° |
| Seat tube angle | 74 | 74.2 | +0.2° |
| Effective top tube | 550 | not listed | |
| Chainstay length | 420 | not listed | |
| Wheelbase | 1005 | not listed | |
| BB drop | 78 | not listed | |
| BB height | 270 | not listed | |
| Standover | 766 | not listed | |
| Seat tube length | 465 | not listed | |
| Fork length | 375 | not listed | |
| Head tube length | 122 | not listed |
Differences are the BMC Roadmachine 01 ONE minus the Specialized Roubaix SL8 Expert. Full charts: 2026 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 Roubaix | BMC Roadmachine 01 |
| Fork | Specialized Future Shock 3.2 | not listed |
| Shifter | Shimano Ultegra R8170 Di2 | Shimano Dura-Ace Di2 |
| Derailleur | Shimano Ultegra R8150 Di2, Shimano Ultegra R8150 | Shimano Dura-Ace Di2 |
| Cassette | Shimano Ultegra R8100 | Shimano Dura-Ace |
| Chain | Shimano XT M8100 | Shimano XTR M9100 |
| Crankset | Shimano Ultegra R8100 | Shimano Dura-Ace Di2 |
| Chainring | Shimano 50 105, Shimano 34 105 | Shimano Dura-Ace Di2 |
| Bottom bracket | Shimano Threaded BSA | Shimano SM-BB92-41B |
| Wheelset | Roval C38 | BMC CE 40 SL |
| Tire | Specialized Mondo TLR Endurance | Vittoria Corsa N.EXT |
| Brake | Shimano Ultegra R8100 | Shimano Dura-Ace Di2 |
| Handlebar | Specialized Hover Expert | BMC ICS Carbon Evo |
| Stem | Specialized Future | BMC ICS Carbon Evo |
| Grips | Supacaz Super Sticky Kush | not listed |
| Seatpost | Specialized S-Works Pave | BMC Roadmachine 01 D-shaped |
| Saddle | Specialized Power Expert | Selle Italia Novus Boost Evo Superflow |
| Rotor | not listed | Shimano RT-CL900 |
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