2022 Trek Émonda SL Disc vs 2024 Specialized Aethos FACT 12r Carbon
The 52 is the Specialized Aethos FACT 12r Carbon size closest to your 52 Trek Émonda SL Disc. 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 Aethos FACT 12r Carbon
Compared with the Trek Émonda SL Disc in 52, the Specialized Aethos FACT 12r Carbon in 52 places the top of the head tube 6 mm lower and 3 mm further back, relative to the bottom bracket.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- −2 mm
- About the same
- Head angle
- −0.3°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Émonda SL Disc numbers we have for size 52 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Émonda SL Disc 52 | Specialized Aethos FACT 12r Carbon 52 | Difference |
|---|---|---|---|
| Reach | 383 | 380mm | −3 mm |
| Stack | 533 | 527mm | −6 mm |
| Head tube angle | 72.8° | 72.5° | −0.3° |
| Effective top tube | 534 | not listed | |
| Chainstay length | 410 | 410mm | ±0 mm |
| Wheelbase | 977 | 975mm | −2 mm |
| BB drop | 72 | 74mm | +2 mm |
| Standover | 732 | 728mm | −4 mm |
| Seat tube length | 483 | 462mm | −21 mm |
| Head tube length | 121 | 120mm | −1 mm |
| Seat tube angle | not listed | 74° | |
| BB height | not listed | 266mm | |
| Fork length | not listed | 369mm |
Differences are the Specialized Aethos FACT 12r Carbon minus the Trek Émonda SL Disc. Full charts: 2022 Trek Émonda SL Disc, 2024 Specialized Aethos FACT 12r Carbon.
Where each sits in its class
Trek Émonda SL DiscSpecialized Aethos FACT 12r Carbon
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 | Trek Émonda SL DiscSL 5 Disc | Specialized Aethos FACT 12r CarbonS-Works FACT 12r Carbon |
|---|---|---|
| Frame | Trek Ultralight 500 | Specialized S-Works Aethos FACT |
| Fork | Trek Émonda SL | not listed |
| Shifter | Shimano 105 R7025 | not listed |
| Derailleur | Shimano 105 R7000 | not listed |
| Cassette | Shimano 105 R7000 | not listed |
| Chain | Shimano 105 HG601 | not listed |
| Crankset | Shimano 105 R7000 | not listed |
| Tire | Bontrager R1 Hard-Case Lite | not listed |
| Rim | Bontrager Affinity | not listed |
| Brake | Shimano 105 | not listed |
| Handlebar | Bontrager Comp VR-C | not listed |
| Seatpost | Bontrager Seatmast Cap | Roval Alpinist |
| Saddle | Bontrager P3 Verse | not listed |
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