2020 Specialized Tarmac SL6 Disc Sport vs 2022 Specialized Aethos Expert
The 56 is the Specialized Aethos Expert size closest to your 56 Specialized Tarmac SL6 Disc Sport. 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 Expert
Compared with the Specialized Tarmac SL6 Disc Sport in 56, the Specialized Aethos Expert in 56 places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +1 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac SL6 Disc Sport, 56Specialized Aethos Expert, 56Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac SL6 Disc Sport 56 | Specialized Aethos Expert 56 | Difference |
|---|---|---|---|
| Reach | 395mm | 395mm | ±0 mm |
| Stack | 565mm | 565mm | ±0 mm |
| Head tube angle | 73.5° | 73.5° | ±0.0° |
| Seat tube angle | 73.5° | 73.5° | ±0.0° |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 990mm | 991mm | +1 mm |
| BB drop | 72mm | 72mm | ±0 mm |
| BB height | 268mm | 268mm | ±0 mm |
| Standover | 795mm | 769mm | −26 mm |
| Seat tube length | 519mm | 504mm | −15 mm |
| Fork length | 363mm | 369mm | +6 mm |
| Head tube length | 163mm | 157mm | −6 mm |
Differences are the Specialized Aethos Expert minus the Specialized Tarmac SL6 Disc Sport. Full charts: 2020 Specialized Tarmac SL6 Disc Sport, 2022 Specialized Aethos Expert.
Where each sits in its class
Specialized Tarmac SL6 Disc SportSpecialized Aethos Expert
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 Tarmac SL6 Disc SportDisc Sport | Specialized Aethos ExpertExpert |
|---|---|---|
| Frame | Specialized Tarmac SL6 | Specialized Aethos FACT |
| Shifter | Shimano 105 R7020 | Specialized Di2 Shimano Ultegra R8170 |
| Derailleur | Shimano 105 R7000, Shimano Tiagra | Specialized Di2 Shimano Ultegra R8150 |
| Cassette | Shimano 105 R7000 | Shimano Ultegra |
| Chain | KMC X11 Extra | Shimano XT M8100 |
| Crankset | Shimano 105 R7000 | Shimano Ultegra R8100 |
| Wheelset | DT Swiss R470 | Roval C38 |
| Tire | Specialized Turbo Pro | Specialized S-Works Turbo |
| Brake | Shimano 105 | Shimano Ultegra R8170 |
| Saddle | Specialized Power Sport | Specialized Power Expert |
| Seatpost | not listed | Roval Alpinist |
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



