2026 Specialized Aethos 2 Pro 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
- −1.1°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Specialized Aethos 2 Pro is drawn. The BMC Roadmachine 01 THREE numbers we have for size 47 are missing the reach, stack, chainstay length and wheelbase.
Geometry side by side
| Measurement | Specialized Aethos 2 Pro 54 | BMC Roadmachine 01 THREE 47 | Difference |
|---|---|---|---|
| Reach | 384 | not listed | |
| Stack | 559 | not listed | |
| Head tube angle | 72.5 | 71.4 | −1.1° |
| Seat tube angle | 74 | 74.2 | +0.2° |
| Effective top tube | 544 | not listed | |
| Chainstay length | 410 | not listed | |
| Wheelbase | 992 | not listed | |
| BB drop | 75 | 74 | −1 mm |
| Head tube length | 150 | not listed | |
| Seat tube length | not listed | not listed |
Differences are the BMC Roadmachine 01 THREE minus the Specialized Aethos 2 Pro. Full charts: 2026 Specialized Aethos 2 Pro, 2026 BMC Roadmachine 01 THREE.
Where each sits in its class
Specialized Aethos 2 ProBMC 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 ProPro | 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 |
| Chainring | SRAM Force E1 | Shimano 50 105, Shimano 34 105 |
| Bottom bracket | SRAM DUB GX | SRAM DUB GX |
| Wheelset | Roval Alpinist CL II | BMC CRD-321 SL |
| Tire | Specialized Turbo TLR Race | Vittoria Rubino V |
| Brake | SRAM Force E1 | Shimano 105 R7170 Di2 |
| Rotor | SRAM Force E1 | SRAM CenterLine X |
| Handlebar | Roval Alpinist Cockpit II | BMC HB D4 03 |
| Stem | Roval Alpinist Cockpit II | BMC RSM 01 |
| Grips | Supacaz Super Sticky Kush | not listed |
| Seatpost | Roval Alpinist Carbon S-Works | BMC Roadmachine Carbon D-shaped |
| Saddle | Specialized Power Pro Mirror | Selle Italia X Superflow |
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