2026
Domane AL Gen
The 2026 Trek Domane AL Gen is a road bike offered in 7 sizes, 44cm to 61cm. Reach runs from 360 to 385 mm and stack from 510 to 646 mm. It ships with Shimano Claris R2000 and Bontrager Paradigm SL.
Every number on this page was confirmed by at least two independent sources. Where the catalog cannot yet stand behind a figure, the cell says so instead of guessing. Last checked .
Key facts
- Brand
- Trek
- Model
- Domane
- Model year
- 2026
- Frame
- AL Gen
- Type
- Road
- Sizes
- 44cm, 49cm, 52cm, 54cm, 56cm, 58cm, and 61cm
- Verified measurements
- 76 of 77
- Last checked
Geometry by size
Millimeters unless the row says degrees. Scroll sideways for the larger sizes.
| Measurement | 44cm | 49cm | 52cm | 54cm | 56cm | 58cm | 61cm |
|---|---|---|---|---|---|---|---|
| Reach(mm) | 360mm | 368mm | 371mm | 374mm | 377mm | 380mm | 385mm |
| Stack(mm) | 510mm | 540mm | 561mm | 575mm | 591mm | 611mm | 646mm |
| Head tube angle(°) | 70.3° | 70.8° | 71.3° | 71.3° | 71.9° | 72.0° | 72.1° |
| Seat tube angle(°) | 74.6° | 74.6° | 74.2° | 73.7° | 73.3° | 73.0° | 72.7° |
| Effective top tube(mm) | not yet verified | 516mm | 530mm | 542mm | 554mm | 567mm | 586mm |
| Chainstay length(mm) | 420mm | 425mm | 420mm | 420mm | 420mm | 425mm | 425mm |
| Wheelbase(mm) | 983mm | 1001mm | 1003mm | 1010mm | 1018mm | 1022mm | 1038mm |
| BB drop(mm) | 80mm | 80mm | 80mm | 80mm | 78mm | 78mm | 75mm |
| Standover(mm) | 657mm | 717mm | 735mm | 754mm | 776mm | 796mm | 842mm |
| Seat tube length(mm) | 390mm | 440mm | 475mm | 500mm | 525mm | 548mm | 576mm |
| Head tube length(mm) | 95mm | 123mm | 145mm | 160mm | 175mm | 195mm | 235mm |
76 of 77 measurements verified.✓Verified, two or more sources agree Not yet verified
2026 Trek Domane AL Gen drawn to scale
Stock build
20 partsSpecs shown only where two or more sources agree.
Frame
Trek Domane AL
Drivetrain
Shimano Claris R2000
Shimano Claris R2000
Shimano Claris R2000
Shimano HG31
Shimano HG71
Shimano Claris R2000
Shimano UN300
Wheels & Tires
Bontrager Paradigm SL
Bontrager R1
Bontrager R1
Brakes
Tektro MD-C550
Tektro C550
Tektro Wave
Cockpit
Bontrager Comp
Bontrager Elite
Not specified
Integrated, cartridge bearing
Seatpost & Saddle
Bontrager Comp
Bontrager Verse Short
Quick answers
- What sizes does the 2026 Trek Domane AL Gen come in?
- It comes in 7 sizes: 44cm, 49cm, 52cm, 54cm, 56cm, 58cm, and 61cm.
- What are the reach and stack of the 2026 Trek Domane AL Gen in size 54cm?
- In size 54cm, reach is 374 mm and stack is 575 mm.
- What is the head tube angle of the 2026 Trek Domane AL Gen?
- The head tube angle is 71.3 degrees in size 54cm.
- What does the 2026 Trek Domane AL 2 Gen 4 ship with?
- The stock build includes Trek Domane AL, Shimano Claris R2000, Bontrager Paradigm SL, and Tektro MD-C550.
- Which years of the Trek Domane are in the catalog?
- The catalog has the Trek Domane for 2026, 2027, 2025, and 2024.
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