2021 Specialized Aethos vs 2023 Trek Émonda SLR Disc Frameset
The 62 is the Trek Émonda SLR Disc Frameset size closest to your 61 Specialized Aethos. 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 Trek Émonda SLR Disc Frameset
Compared with the Specialized Aethos in 61, the Trek Émonda SLR Disc Frameset in 62 places the top of the head tube 8 mm higher and 5 mm further back, relative to the bottom bracket.
- Frame stack
- +8 mm
- Higher front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- −2 mm
- About the same
- Head angle
- −0.1°
- About the same head angle
- Chainstays
- +2 mm
- About the same
The two frames
Only the Specialized Aethos is drawn. The Trek Émonda SLR Disc Frameset numbers we have for size 62 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Aethos 61 | Trek Émonda SLR Disc Frameset 62 | Difference |
|---|---|---|---|
| Reach | 408mm | 403 | −5 mm |
| Stack | 612mm | 620 | +8 mm |
| Head tube angle | 74° | 73.9° | −0.1° |
| Seat tube angle | 73° | not listed | |
| Chainstay length | 410mm | 412 | +2 mm |
| Wheelbase | 1012mm | 1010 | −2 mm |
| BB drop | 72mm | 68 | −4 mm |
| BB height | 268mm | not listed | |
| Standover | 824mm | 829 | +5 mm |
| Seat tube length | 567mm | 593 | +26 mm |
| Fork length | 369mm | not listed | |
| Head tube length | 204mm | 211 | +7 mm |
| Effective top tube | not listed | 598 |
Differences are the Trek Émonda SLR Disc Frameset minus the Specialized Aethos. Full charts: 2021 Specialized Aethos, 2023 Trek Émonda SLR Disc Frameset.
Where each sits in its class
Specialized AethosTrek Émonda SLR Disc Frameset
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 AethosAethos Frameset | Trek Émonda SLR Disc FramesetSLR Disc Frameset |
|---|---|---|
| Frame | Specialized Aethos FACT | Trek Ultralight 800 |
| Seatpost | Roval Alpinist | not listed |
| Fork | not listed | Trek Emonda SLR |
| Derailleur | not listed | Trek derailleurs must have |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
