2024 Specialized Roubaix SL8 Sport vs 2025 Trek Domane SL Gen 2 Rim
The Trek Domane SL Gen 2 Rim size closest to your 54 is the 56. Compare the 56 instead
What changes on the Trek Domane SL Gen 2 Rim
Compared with the Specialized Roubaix SL8 Sport in 54, the Trek Domane SL Gen 2 Rim in 50 places the top of the head tube 39 mm lower and 13 mm further back, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −39 mm
- Lower front end
- Frame reach
- −13 mm
- Shorter frame reach
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- −1.2°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Only the Specialized Roubaix SL8 Sport is drawn. The Trek Domane SL Gen 2 Rim numbers we have for size 50 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Roubaix SL8 Sport 54 | Trek Domane SL Gen 2 Rim 50 | Difference |
|---|---|---|---|
| Reach | 381mm | 368 | −13 mm |
| Stack | 585mm | 546 | −39 mm |
| Head tube angle | 72.3° | 71.1° | −1.2° |
| Seat tube angle | 74° | not listed | |
| Chainstay length | 420mm | 420 | ±0 mm |
| Wheelbase | 1005mm | 996 | −9 mm |
| BB drop | 78mm | 80 | +2 mm |
| BB height | 270mm | not listed | |
| Standover | 766mm | 716 | −50 mm |
| Seat tube length | 465mm | 450 | −15 mm |
| Fork length | 375mm | not listed | |
| Head tube length | 122mm | 130 | +8 mm |
| Effective top tube | not listed | 519 |
Differences are the Trek Domane SL Gen 2 Rim minus the Specialized Roubaix SL8 Sport. Full charts: 2024 Specialized Roubaix SL8 Sport, 2025 Trek Domane SL Gen 2 Rim.
Where each sits in its class
Specialized Roubaix SL8 SportTrek Domane SL Gen 2 Rim
Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
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