2027 Trek Madone SL Gen 8 vs 2025 Trek Émonda ALR
The 58 is the Trek Émonda ALR size closest to your L Trek Madone SL Gen 8. 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 Émonda ALR
Compared with the Trek Madone SL Gen 8 in L, the Trek Émonda ALR in 58 places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket.
- Frame stack
- −1 mm
- About the same height
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +2 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Madone SL Gen 8 numbers we have for size L are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Madone SL Gen 8 L | Trek Émonda ALR 58 | Difference |
|---|---|---|---|
| Reach | 394 | 396 | +2 mm |
| Stack | 582 | 581 | −1 mm |
| Head tube angle | 73.8° | 73.8° | ±0.0° |
| Effective top tube | 568 | 574 | +6 mm |
| Chainstay length | 411 | 411 | ±0 mm |
| Wheelbase | 990 | 992 | +2 mm |
| BB drop | 68 | 68 | ±0 mm |
| Standover | 820 | 793 | −27 mm |
| Seat tube length | 548 | 553 | +5 mm |
| Head tube length | 172 | 171 | −1 mm |
Differences are the Trek Émonda ALR minus the Trek Madone SL Gen 8. Full charts: 2027 Trek Madone SL Gen 8, 2025 Trek Émonda ALR.
Where each sits in its class
Trek Madone SL Gen 8Trek Émonda ALR
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 | Trek Madone SL Gen 8SL 6 AXS Gen 8 | Trek Émonda ALRALR 5 |
|---|---|---|
| Fork | Trek Madone Gen 8 | Trek Émonda ALR |
| Shifter | SRAM Rival AXS E1 | not listed |
| Derailleur | SRAM Rival AXS | not listed |
| Cassette | SRAM XG1250 | not listed |
| Crankset | SRAM Rival AXS | not listed |
| Bottom bracket | SRAM DUB | not listed |
| Wheelset | Bontrager Aeolus Elite 50 | Bontrager Paradigm SL |
| Tire | Bontrager Aeolus Pro | Bontrager R1 Hard-Case Lite |
| Rotor | SRAM Paceline | not listed |
| Stem | Trek RCS | not listed |
| Seatpost | Trek Madone | not listed |
| Saddle | Bontrager Aeolus Elite | not listed |
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