2020 Specialized Tarmac Disc Sagan Collection Mirror LTD vs 2022 Specialized Aethos Expert
The 61 is the Specialized Aethos Expert size closest to your 61 Specialized Tarmac Disc Sagan Collection Mirror LTD. 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 Disc Sagan Collection Mirror LTD in 61, the Specialized Aethos Expert in 61 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
- ±0 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Disc Sagan Collection Mirror LTD, 61Specialized Aethos Expert, 61Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Disc Sagan Collection Mirror LTD 61 | Specialized Aethos Expert 61 | Difference |
|---|---|---|---|
| Reach | 408mm | 408mm | ±0 mm |
| Stack | 612mm | 612mm | ±0 mm |
| Head tube angle | 74° | 74° | ±0.0° |
| Seat tube angle | 73° | 73° | ±0.0° |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 1012mm | 1012mm | ±0 mm |
| BB drop | 72mm | 72mm | ±0 mm |
| BB height | 268mm | 268mm | ±0 mm |
| Standover | 850mm | 824mm | −26 mm |
| Seat tube length | 553mm | 567mm | +14 mm |
| Fork length | 363mm | 369mm | +6 mm |
| Head tube length | 210mm | 204mm | −6 mm |
Differences are the Specialized Aethos Expert minus the Specialized Tarmac Disc Sagan Collection Mirror LTD. Full charts: 2020 Specialized Tarmac Disc Sagan Collection Mirror LTD, 2022 Specialized Aethos Expert.
Where each sits in its class
Specialized Tarmac Disc Sagan Collection Mirror 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 Mirror LTDS-Works Disc Sagan Collection Mirror LTD | Specialized Aethos ExpertExpert |
|---|---|---|
| Shifter | Specialized WAN FENG | Specialized Di2 Shimano Ultegra R8170 |
| Frame | not listed | Specialized Aethos FACT |
| 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 |
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