2023 Specialized Aethos Expert vs 2022 Specialized Tarmac SL6
The Specialized Tarmac SL6 size closest to your 54 is the 54. Compare the 54 instead
What changes on the Specialized Tarmac SL6
Compared with the Specialized Aethos Expert in 54, the Specialized Tarmac SL6 in 49 places the top of the head tube 30 mm lower and 9 mm further back, relative to the bottom bracket. Its wheelbase is 5 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −30 mm
- Lower front end
- Frame reach
- −9 mm
- Shorter frame reach
- Wheelbase
- −5 mm
- Shorter: quicker to change direction
- Head angle
- −1.3°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Aethos Expert, 54Specialized Tarmac SL6, 49Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Aethos Expert 54 | Specialized Tarmac SL6 49 | Difference |
|---|---|---|---|
| Reach | 384mm | 375mm | −9 mm |
| Stack | 544mm | 514mm | −30 mm |
| Head tube angle | 73° | 71.75° | −1.3° |
| Seat tube angle | 74° | 75.5° | +1.5° |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 978mm | 973mm | −5 mm |
| BB drop | 72mm | 74mm | +2 mm |
| BB height | 268mm | 266mm | −2 mm |
| Standover | 748mm | 740mm | −8 mm |
| Seat tube length | 481mm | 451mm | −30 mm |
| Fork length | 369mm | 363mm | −6 mm |
| Head tube length | 137mm | 115mm | −22 mm |
Differences are the Specialized Tarmac SL6 minus the Specialized Aethos Expert. Full charts: 2023 Specialized Aethos Expert, 2022 Specialized Tarmac SL6.
Where each sits in its class
Specialized Aethos ExpertSpecialized Tarmac SL6
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 Aethos ExpertExpert | Specialized Tarmac SL6Tarmac SL6 - Shimano Tiagra |
|---|---|---|
| Frame | Specialized Aethos FACT | Specialized Tarmac SL6 |
| Shifter | SRAM Rival eTAP AXS | Shimano Tiagra |
| Derailleur | SRAM Rival eTAP AXS | Shimano Tiagra |
| Cassette | SRAM Rival | not listed |
| Chain | SRAM Rival | KMC X10 |
| Crankset | SRAM Rival AXS Power Meter | Shimano Tiagra 4700 |
| Bottom bracket | SRAM DUB | not listed |
| Wheelset | Roval C38 | Specialized Axis Sport |
| Tire | Specialized S-Works Turbo | Specialized Turbo Pro |
| Brake | SRAM Rival eTap AXS | Shimano Tiagra BR-4770 |
| Seatpost | Roval Alpinist | not listed |
| Saddle | Specialized Power Expert | Specialized Power Sport |
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