2026 Specialized Aethos 2 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 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 56 | BMC Roadmachine 01 THREE 54 | Difference |
|---|---|---|---|
| Reach | 391 | not listed | |
| Stack | 580 | not listed | |
| Head tube angle | 73 | not listed | |
| Seat tube angle | 74 | 74.2 | +0.2° |
| Effective top tube | 557 | not listed | |
| Chainstay length | 410 | not listed | |
| Wheelbase | 998 | not listed | |
| BB drop | 75 | 76 | +1 mm |
| Head tube length | 169 | not listed | |
| Seat tube length | not listed | not listed |
Differences are the BMC Roadmachine 01 THREE minus the Specialized Aethos 2. Full charts: 2026 Specialized Aethos 2, 2026 BMC Roadmachine 01 THREE.
Where each sits in its class
Specialized Aethos 2BMC 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 2S-Works | BMC Roadmachine 01 THREETHREE |
|---|---|---|
| Frame | Specialized Aethos 2 | BMC Roadmachine 01 |
| Shifter | SRAM RED | Shimano 105 Di2 |
| Derailleur | SRAM Red AXS E1 | Shimano 105 Di2, SRAM Force AXS |
| Cassette | Shimano Dura-Ace R9200 | Shimano 105 |
| Chain | SRAM RED E1 | SRAM Force D1 |
| Crankset | SRAM Powermeter Red AXS | Shimano 105 |
| Chainring | Shimano Dura-Ace R9200 | Shimano 50 105, Shimano 34 105 |
| Bottom bracket | SRAM DUB | SRAM DUB GX |
| Wheelset | Roval Alpinist CLX III | BMC CRD-321 SL |
| Tire | Specialized Turbo TLR Race | Vittoria Rubino V |
| Hub | Roval LF21-F | not listed |
| Brake | Shimano Dura-Ace R9200 | Shimano 105 R7170 Di2 |
| Rotor | Shimano Dura-Ace R9200 | SRAM CenterLine X |
| Handlebar | Roval Alpinist Cockpit II | BMC HB D4 03 |
| Stem | Roval Alpinist Cockpit II | BMC RSM 01 |
| Bar tape | Supacaz Super Sticky Kush | not listed |
| Headset | CeramicSpeed SLT | not listed |
| Seatpost | Roval Alpinist | BMC Roadmachine Carbon D-shaped |
| Saddle | Specialized Power | Selle Italia X Superflow |
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