2020 Specialized Tarmac Disc Sagan Collection Overexposed LTD vs 2022 Specialized Aethos Expert
The Specialized Aethos Expert size closest to your 54 is the 54. Compare the 54 instead
What changes on the Specialized Aethos Expert
Compared with the Specialized Tarmac Disc Sagan Collection Overexposed LTD in 54, the Specialized Aethos Expert in 61 places the top of the head tube 68 mm higher and 24 mm further forward, relative to the bottom bracket. Its wheelbase is 34 mm longer, which can contribute to stability at speed.
- Frame stack
- +68 mm
- Higher front end
- Frame reach
- +24 mm
- Longer frame reach
- Wheelbase
- +34 mm
- Longer: steadier at speed
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Disc Sagan Collection Overexposed LTD, 54Specialized Aethos Expert, 61Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Disc Sagan Collection Overexposed LTD 54 | Specialized Aethos Expert 61 | Difference |
|---|---|---|---|
| Reach | 384mm | 408mm | +24 mm |
| Stack | 544mm | 612mm | +68 mm |
| Head tube angle | 73° | 74° | +1.0° |
| Seat tube angle | 74° | 73° | −1.0° |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 978mm | 1012mm | +34 mm |
| BB drop | 72mm | 72mm | ±0 mm |
| BB height | 268mm | 268mm | ±0 mm |
| Standover | 775mm | 824mm | +49 mm |
| Seat tube length | 481mm | 567mm | +86 mm |
| Fork length | 363mm | 369mm | +6 mm |
| Head tube length | 143mm | 204mm | +61 mm |
Differences are the Specialized Aethos Expert minus the Specialized Tarmac Disc Sagan Collection Overexposed LTD. Full charts: 2020 Specialized Tarmac Disc Sagan Collection Overexposed LTD, 2022 Specialized Aethos Expert.
Where each sits in its class
Specialized Tarmac Disc Sagan Collection Overexposed LTDSpecialized 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 Disc Sagan Collection Overexposed LTD | Specialized Aethos ExpertExpert |
|---|---|---|
| Frame | not listed | Specialized Aethos FACT |
| Shifter | not listed | Specialized Di2 Shimano Ultegra R8170 |
| Derailleur | not listed | Specialized Di2 Shimano Ultegra R8150 |
| Cassette | not listed | Shimano Ultegra |
| Chain | not listed | Shimano XT M8100 |
| Crankset | not listed | Shimano Ultegra R8100 |
| Wheelset | not listed | Roval C38 |
| Tire | not listed | Specialized S-Works Turbo |
| Brake | not listed | Shimano Ultegra R8170 |
| Seatpost | not listed | Roval Alpinist |
| Saddle | not listed | Specialized Power Expert |
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
