2022 Specialized Aethos Pro vs 2020 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 Pro in 54, the Specialized Tarmac SL6 in 44 places the top of the head tube 44 mm lower and 19 mm further back, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −44 mm
- Lower front end
- Frame reach
- −19 mm
- Shorter frame reach
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- −2.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Aethos Pro, 54Specialized Tarmac SL6, 44Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Aethos Pro 54 | Specialized Tarmac SL6 44 | Difference |
|---|---|---|---|
| Reach | 384mm | 365mm | −19 mm |
| Stack | 544mm | 500mm | −44 mm |
| Head tube angle | 73° | 70.5° | −2.5° |
| Seat tube angle | 74° | 76° | +2.0° |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 978mm | 969mm | −9 mm |
| BB drop | 72mm | 74mm | +2 mm |
| BB height | 268mm | 266mm | −2 mm |
| Standover | 748mm | 730mm | −18 mm |
| Seat tube length | 481mm | 400mm | −81 mm |
| Fork length | 369mm | 363mm | −6 mm |
| Head tube length | 137mm | 105mm | −32 mm |
Differences are the Specialized Tarmac SL6 minus the Specialized Aethos Pro. Full charts: 2022 Specialized Aethos Pro, 2020 Specialized Tarmac SL6.
Where each sits in its class
Specialized Aethos ProSpecialized 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 ProPro | Specialized Tarmac SL6S-Works |
|---|---|---|
| Frame | Specialized Aethos FACT | not listed |
| Shifter | SRAM Force eTap AXS | not listed |
| Derailleur | SRAM Force eTAP AXS | SRAM RED eTAP AXS |
| Cassette | SRAM Force | SRAM RED XG-1290 |
| Chain | SRAM Force | SRAM Red |
| Crankset | SRAM Force AXS Power Meter | SRAM RED AXS Power Meter |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Wheelset | Roval Alpinist CL | Roval CLX 50 |
| Tire | Specialized S-Works Turbo | Specialized Turbo Cotton |
| Brake | SRAM Red AXS, SRAM Red E1 | SRAM Red eTap AXS |
| Seatpost | Roval Alpinist | not listed |
| Saddle | Specialized Power | Specialized S-Works Power |
| Hub | not listed | Specialized LuHai_RVT66L-K5-B25-AN2-N4-F0 |
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