2026 Specialized Roubaix SL8 Sport vs 2026 BMC Roadmachine TWO
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 TWO
- 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
We can't draw these frames yet. The Specialized Roubaix SL8 Sport numbers we have for size 54 are missing the wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Roubaix SL8 Sport 54 | BMC Roadmachine TWO 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 | |
| BB drop | 78 | not listed | |
| BB height | 270 | not listed | |
| Standover | 766 | not listed | |
| Seat tube length | 465 | not listed | |
| Fork length | 375 | 379 | +4 mm |
| Head tube length | 122 | not listed |
Differences are the BMC Roadmachine TWO minus the Specialized Roubaix SL8 Sport. Full charts: 2026 Specialized Roubaix SL8 Sport, 2026 BMC Roadmachine TWO.
Where each sits in its class
Specialized Roubaix SL8 SportBMC Roadmachine TWO
AggressivePositionUpright
CalmSteeringQuick
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 TWOTWO |
|---|---|---|
| Frame | Specialized FACT 10R | BMC Roadmachine |
| Fork | Specialized Future Shock 3.2 | not listed |
| Shifter | Shimano 105 R7120 | Shimano 105 R7170 |
| Derailleur | Shimano 105 Di2, Shimano 105 R7100 | Shimano 105 R7150 Di2, Shimano 105 R7150 |
| Cassette | Shimano 105 | Shimano CS-HG710 |
| Chain | Shimano SLX M7100 | Shimano Deore M6100 |
| Crankset | Shimano 105 | Shimano 105 R7100 |
| Bottom bracket | Shimano Threaded BSA | Shimano BB-RS500-PB |
| Wheelset | DT Swiss G540 | PRD23 |
| Tire | Specialized Mondo | Vittoria Rubino V |
| Brake | Shimano CUES | Shimano 105 R7170 Di2 |
| Handlebar | Specialized Hover | BMC HB D4 03 |
| Stem | Specialized Future Pro | BMC RSM 01 |
| Grips | Supacaz Super Sticky Kush | not listed |
| Seatpost | Specialized Pavé | BMC Roadmachine Carbon D-shaped |
| Saddle | Specialized Power Sport | Selle Italia Model X Superflow |
| Chainring | not listed | Shimano 50T, Shimano 34T |
| Rotor | not listed | Shimano SM-RT70, Shimano 160mm |
| Bag | not listed | Storage Pouch |
| Light | not listed | BMC Integrated Rear Light 25 |
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