2025 Specialized Aethos 2 Expert vs 2026 BMC Roadmachine 01 THREE
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 THREE
- 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
- n/a
- One of the bikes has no number for this
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Specialized Aethos 2 Expert is drawn. The BMC Roadmachine 01 THREE numbers we have for size 54 are missing the reach, stack, head angle, chainstay length and wheelbase.
Geometry side by side
| Measurement | Specialized Aethos 2 Expert 49 | BMC Roadmachine 01 THREE 54 | Difference |
|---|---|---|---|
| Reach | 373 | not listed | |
| Stack | 522 | not listed | |
| Head tube angle | 71.4 | not listed | |
| Seat tube angle | 74 | 74.2 | +0.2° |
| Effective top tube | 508 | not listed | |
| Chainstay length | 410 | not listed | |
| Wheelbase | 978 | not listed | |
| BB drop | 76.5 | 76 | −1 mm |
| BB height | 265.5 | not listed | |
| Standover | 719 | not listed | |
| Seat tube length | 450 | not listed | |
| Head tube length | 114 | not listed |
Differences are the BMC Roadmachine 01 THREE minus the Specialized Aethos 2 Expert. Full charts: 2025 Specialized Aethos 2 Expert, 2026 BMC Roadmachine 01 THREE.
Where each sits in its class
Specialized Aethos 2 ExpertBMC Roadmachine 01 THREE
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 Aethos 2 ExpertExpert | BMC Roadmachine 01 THREETHREE |
|---|---|---|
| Frame | Specialized Aethos 2 | BMC Roadmachine 01 |
| Shifter | SRAM Force AXS E1 | Shimano 105 Di2 |
| Derailleur | SRAM Force AXS E1 | Shimano 105 Di2, SRAM Force AXS |
| Cassette | SRAM Force | Shimano 105 |
| Chain | SRAM Force D1 | SRAM Force D1 |
| Crankset | SRAM Force E1 XPLR 1x | Shimano 105 |
| Bottom bracket | SRAM DUB GX | SRAM DUB GX |
| Wheelset | Roval C38 | BMC CRD-321 SL |
| Tire | S Works Turbo | Vittoria Rubino V |
| Brake | SRAM Force E1 | Shimano 105 R7170 Di2 |
| Rotor | Shimano Ultegra R8170 | SRAM CenterLine X |
| Handlebar | Roval Alpinist | BMC HB D4 03 |
| Stem | Specialized Pro SL | BMC RSM 01 |
| Grips | Supacaz Super Sticky Kush | not listed |
| Seatpost | Roval Alpinist | BMC Roadmachine Carbon D-shaped |
| Saddle | Specialized Power Expert | Selle Italia X Superflow |
| Chainring | not listed | Shimano 50 105, Shimano 34 105 |
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