2025 Specialized Aethos Shimano vs 2023 Trek Madone SLR
The 60 is the Trek Madone SLR size closest to your 58 Specialized Aethos Shimano. 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 Shimano in 58, the Trek Madone SLR in 60 places the top of the head tube 10 mm higher and 3 mm further back, relative to the bottom bracket. Its wheelbase is 4 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +10 mm
- Higher front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- −4 mm
- Shorter: quicker to change direction
- Head angle
- +0.4°
- Steeper: sharper steering
- Chainstays
- +1 mm
- About the same
The two frames
Specialized Aethos Shimano, 58Trek Madone SLR, 60Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Aethos Shimano 58 | Trek Madone SLR 60 | Difference |
|---|---|---|---|
| Reach | 402mm | 399 | −3 mm |
| Stack | 591mm | 601 | +10 mm |
| Head tube angle | 73.5° | 73.9 | +0.4° |
| Seat tube angle | 73.5° | 72.8 | −0.7° |
| Effective top tube | 577mm | 586 | +9 mm |
| Chainstay length | 410mm | 411 | +1 mm |
| Wheelbase | 1005mm | 1001 | −4 mm |
| BB drop | 72mm | 68 | −4 mm |
| BB height | 268mm | not listed | |
| Standover | 796mm | 811 | +15 mm |
| Seat tube length | 532mm | 573 | +41 mm |
| Fork length | 369mm | not listed | |
| Head tube length | 184mm | 191 | +7 mm |
Differences are the Trek Madone SLR minus the Specialized Aethos Shimano. Full charts: 2025 Specialized Aethos Shimano, 2023 Trek Madone SLR.
Where each sits in its class
Specialized Aethos ShimanoTrek 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 ShimanoS-Works - Shimano Dura-Ace Di2 | Trek Madone SLRSLR 6 |
|---|---|---|
| Frame | Specialized Aethos | Trek Madone |
| Shifter | Shimano Dura-Ace R9270 | Shimano Ultegra |
| Derailleur | Shimano Dura-Ace R9250 | Shimano Ultegra |
| Cassette | Shimano Dura-Ace | Shimano Ultegra |
| Chain | Shimano XTR M9100 | Shimano 105 DI2 |
| Crankset | Shimano Dura-Ace R9200 | Shimano Ultegra Mid Compact |
| Bottom bracket | Shimano Dura-Ace | Trek T47 |
| Wheelset | Roval Alpinist | Bontrager Aeolus Pro 51 |
| Tire | Specialized S-Works Turbo 2BR | Bontrager R3 Hard-Case Lite |
| Brake | Shimano Dura-Ace R9200 | Shimano Ultegra |
| Seatpost | Roval Alpinist | Trek Madone |
| Saddle | Specialized S-Works Power | 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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