2023 Trek Domane AL Rim vs 2025 Trek Domane AL 4 Gen 4
The 56 is the Trek Domane AL 4 Gen 4 size closest to your 56 Trek Domane AL Rim. 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 AL Rim in 56, the Trek Domane AL 4 Gen 4 in 56 places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- ±0 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 Domane AL Rim numbers we have for size 56 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane AL Rim 56 | Trek Domane AL 4 Gen 4 56 | Difference |
|---|---|---|---|
| Reach | 377 | 377 | ±0 mm |
| Stack | 591 | 591 | ±0 mm |
| Head tube angle | 71.9° | 71.9° | ±0.0° |
| Effective top tube | 554 | 554 | ±0 mm |
| Chainstay length | 420 | 420 | ±0 mm |
| Wheelbase | 1018 | 1018 | ±0 mm |
| BB drop | 78 | 78 | ±0 mm |
| Standover | 776 | 776 | ±0 mm |
| Seat tube length | 525 | 525 | ±0 mm |
| Head tube length | 175 | 175 | ±0 mm |
Differences are the Trek Domane AL 4 Gen 4 minus the Trek Domane AL Rim. Full charts: 2023 Trek Domane AL Rim, 2025 Trek Domane AL 4 Gen 4.
Where each sits in its class
Trek Domane AL RimTrek 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 AL RimAL 2 Rim | Trek Domane AL 4 Gen 4Gen 4 |
|---|---|---|
| Frame | Trek Alpha | Trek Domane AL |
| Fork | Trek Domane | Trek Domane AL |
| Shifter | Shimano Claris R2000 | Shimano Tiagra |
| Derailleur | Shimano Claris R2000 | Shimano Tiagra |
| Cassette | Shimano HG-31 | Shimano HG500 |
| Chain | Shimano Sora HG71 | Shimano HG54 Tiagra |
| Crankset | Shimano RS200 | Shimano Tiagra |
| Bottom bracket | Shimano UN26 | Shimano RS501 |
| Tire | Bontrager R1 Hard-Case Lite | Bontrager Kwaremont Comp |
| Hub | Formula TK-31, Formula TK-32 | Formula RX-512, Formula RX-142 |
| Handlebar | Bontrager Comp VR-C | Bontrager Comp |
| Saddle | Bontrager P3 Verse | Bontrager Verse Short |
| Chainring | not listed | Shimano Tiagra |
| Wheelset | not listed | Bontrager Paradigm 23 |
| 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 |
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