2027 BMC Roadmachine 01 THREE vs 2026 Specialized Roubaix SL8 Sport
The 58 is the Specialized Roubaix SL8 Sport size closest to your 58 BMC Roadmachine 01 THREE. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Roubaix SL8 Sport
Compared with the BMC Roadmachine 01 THREE in 58, the Specialized Roubaix SL8 Sport in 58 places the top of the head tube 10 mm higher and 4 mm further forward, relative to the bottom bracket.
- Frame stack
- +10 mm
- Higher front end
- Frame reach
- +4 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.8°
- Steeper: sharper steering
- Chainstays
- +8 mm
- Longer: more planted
The two frames
Only the BMC Roadmachine 01 THREE is drawn. The Specialized Roubaix SL8 Sport numbers we have for size 58 are missing the wheelbase.
Geometry side by side
| Measurement | BMC Roadmachine 01 THREE 58 | Specialized Roubaix SL8 Sport 58 | Difference |
|---|---|---|---|
| Reach | 393 | 397 | +4 mm |
| Stack | 620 | 630 | +10 mm |
| Head tube angle | 72.2 | 73 | +0.8° |
| Seat tube angle | 74.2 | 73.5 | −0.7° |
| Chainstay length | 415 | 423 | +8 mm |
| Wheelbase | 1023 | not listed | |
| BB drop | 75 | 78 | +3 mm |
| Standover | 828 | 809 | −19 mm |
| Seat tube length | 529 | 505 | −24 mm |
| Fork length | 379 | 375 | −4 mm |
| Head tube length | 207 | 168 | −39 mm |
| Effective top tube | not listed | 584 | |
| BB height | not listed | 271 |
Differences are the Specialized Roubaix SL8 Sport minus the BMC Roadmachine 01 THREE. Full charts: 2027 BMC Roadmachine 01 THREE, 2026 Specialized Roubaix SL8 Sport.
Where each sits in its class
BMC Roadmachine 01 THREESpecialized Roubaix SL8 Sport
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 | BMC Roadmachine 01 THREETHREE | Specialized Roubaix SL8 SportSL8 Sport |
|---|---|---|
| Frame | BMC Roadmachine 01 | Specialized FACT 10R |
| Shifter | Shimano Ultegra R8170 | Shimano 105 R7120 |
| Derailleur | Shimano Ultegra R8150 Di2, Shimano Ultegra R8150 | Shimano 105 Di2, Shimano 105 R7100 |
| Cassette | Shimano Ultegra R8101 | Shimano 105 |
| Crankset | Shimano Ultegra R8100 | Shimano 105 |
| Bottom bracket | Shimano BB72 Ultegra | Shimano Threaded BSA |
| Tire | Vittoria Corsa N.EXT | Specialized Mondo |
| Hub | TXC-812, TXC-240A | not listed |
| Rim | Ce 40 Carbon | not listed |
| Brake | Shimano Ultegra R8170 | Shimano CUES |
| Rotor | Shimano RT-CL800 | not listed |
| Handlebar | BMC HB D4 01 | Specialized Hover |
| Stem | BMC ICS2 | Specialized Future Pro |
| Grips | BMC Tacky | Supacaz Super Sticky Kush |
| Seatpost | BMC D-Shaped | Specialized Pavé |
| Saddle | Selle Italia Novus | Specialized Power Sport |
| Fork | not listed | Specialized Future Shock 3.2 |
| Chain | not listed | Shimano SLX M7100 |
| Wheelset | not listed | DT Swiss G540 |
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