2023 Specialized Aethos Expert vs 2023 Trek Madone SLR
The 54 is the Trek Madone SLR size closest to your 54 Specialized Aethos Expert. 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 Trek Madone SLR
Compared with the Specialized Aethos Expert in 54, the Trek Madone SLR in 54 places the top of the head tube 3 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 3 mm longer, which can contribute to stability at speed.
- Frame stack
- −3 mm
- Lower front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +3 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Aethos Expert, 54Trek Madone SLR, 54Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Aethos Expert 54 | Trek Madone SLR 54 | Difference |
|---|---|---|---|
| Reach | 384mm | 386 | +2 mm |
| Stack | 544mm | 541 | −3 mm |
| Head tube angle | 73° | 73.0 | ±0.0° |
| Seat tube angle | 74° | 73.7 | −0.3° |
| Chainstay length | 410mm | 410 | ±0 mm |
| Wheelbase | 978mm | 981 | +3 mm |
| BB drop | 72mm | 70 | −2 mm |
| BB height | 268mm | not listed | |
| Standover | 748mm | 744 | −4 mm |
| Seat tube length | 481mm | 496 | +15 mm |
| Fork length | 369mm | not listed | |
| Head tube length | 137mm | 131 | −6 mm |
| Effective top tube | not listed | 543 |
Differences are the Trek Madone SLR minus the Specialized Aethos Expert. Full charts: 2023 Specialized Aethos Expert, 2023 Trek Madone SLR.
Where each sits in its class
Specialized Aethos ExpertTrek Madone SLR
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 | Trek Madone SLRSLR 6 |
|---|---|---|
| Frame | Specialized Aethos FACT | Trek Madone |
| Shifter | SRAM Rival eTAP AXS | Shimano Ultegra |
| Derailleur | SRAM Rival eTAP AXS | Shimano Ultegra |
| Cassette | SRAM Rival | Shimano Ultegra |
| Chain | SRAM Rival | Shimano 105 DI2 |
| Crankset | SRAM Rival AXS Power Meter | Shimano Ultegra Mid Compact |
| Bottom bracket | SRAM DUB | Trek T47 |
| Wheelset | Roval C38 | Bontrager Aeolus Pro 51 |
| Tire | Specialized S-Works Turbo | Bontrager R3 Hard-Case Lite |
| Brake | SRAM Rival eTap AXS | Shimano Ultegra |
| Seatpost | Roval Alpinist | Trek Madone |
| Saddle | Specialized Power Expert | Bontrager Aeolus Elite |
| Fork | not listed | Trek Madone KVF |
| Chainring | not listed | Shimano Ultegra |
| Rotor | not listed | Shimano Ultegra |
| Handlebar | not listed | Trek Madone Integrated |
| Stem | not listed | Trek Madone aero |
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