2024 Trek Domane SL Gen 4 vs 2025 Trek Domane AL 4 Gen 4
The 61 is the Trek Domane AL 4 Gen 4 size closest to your 62 Trek Domane SL Gen 4. 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 Domane AL 4 Gen 4
Compared with the Trek Domane SL Gen 4 in 62, the Trek Domane AL 4 Gen 4 in 61 places the top of the head tube 10 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 4 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- −4 mm
- Shorter: quicker to change direction
- 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 Domane SL Gen 4 numbers we have for size 62 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane SL Gen 4 62 | Trek Domane AL 4 Gen 4 61 | Difference |
|---|---|---|---|
| Reach | 386 | 385 | −1 mm |
| Stack | 656 | 646 | −10 mm |
| Head tube angle | 72.1° | 72.1° | ±0.0° |
| Effective top tube | 593 | 586 | −7 mm |
| Chainstay length | 425 | 425 | ±0 mm |
| Wheelbase | 1042 | 1038 | −4 mm |
| BB drop | 75 | 75 | ±0 mm |
| Standover | 835 | 842 | +7 mm |
| Seat tube length | 586 | 576 | −10 mm |
| Head tube length | 245 | 235 | −10 mm |
Differences are the Trek Domane AL 4 Gen 4 minus the Trek Domane SL Gen 4. Full charts: 2024 Trek Domane SL Gen 4, 2025 Trek Domane AL 4 Gen 4.
Where each sits in its class
Trek Domane SL Gen 4Trek Domane AL 4 Gen 4
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 Domane SL Gen 4SL 5 Gen 4 | Trek Domane AL 4 Gen 4Gen 4 |
|---|---|---|
| Fork | Trek Domane SL | Trek Domane AL |
| Wheelset | Bontrager Paradigm SL | Bontrager Paradigm 23 |
| Tire | Bontrager R3 Hard-Case Lite | Bontrager Kwaremont Comp |
| Handlebar | Bontrager Elite IsoZone VR-SF | Bontrager Comp |
| Frame | not listed | Trek Domane AL |
| Shifter | not listed | Shimano Tiagra |
| Derailleur | not listed | Shimano Tiagra |
| Cassette | not listed | Shimano HG500 |
| Chain | not listed | Shimano HG54 Tiagra |
| Crankset | not listed | Shimano Tiagra |
| Chainring | not listed | Shimano Tiagra |
| Bottom bracket | not listed | Shimano RS501 |
| Hub | not listed | Formula RX-512, Formula RX-142 |
| Rim | not listed | Bontrager Paradigm SL |
| Brake | not listed | Shimano Tiagra |
| Rotor | not listed | Shimano SM-RT66 |
| Stem | not listed | Bontrager Elite |
| Bar tape | not listed | Bontrager Supertack Performance |
| Seatpost | not listed | Bontrager Comp |
| Saddle | not listed | Bontrager Verse Short |
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