2025 Trek Domane AL Gen 4 vs 2027 Giant Contend AR
The Giant Contend AR size closest to your 54 is the M. Compare the M instead
What changes on the Giant Contend AR
Compared with the Trek Domane AL Gen 4 in 54, the Giant Contend AR in XL places the top of the head tube 63 mm higher and 26 mm further forward, relative to the bottom bracket. Its wheelbase is 36 mm longer, which can contribute to stability at speed.
- Frame stack
- +63 mm
- Higher front end
- Frame reach
- +26 mm
- Longer frame reach
- Wheelbase
- +36 mm
- Longer: steadier at speed
- Head angle
- +1.2°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Domane AL Gen 4 numbers we have for size 54 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane AL Gen 4 54 | Giant Contend AR XL | Difference |
|---|---|---|---|
| Reach | 374 | 399.9 | +26 mm |
| Stack | 575 | 638.2 | +63 mm |
| Head tube angle | 71.3° | 72.5° | +1.2° |
| Effective top tube | 542 | not listed | |
| Chainstay length | 420 | 422 | +2 mm |
| Wheelbase | 1010 | 1045.8 | +36 mm |
| BB drop | 80 | 80 | ±0 mm |
| Standover | 754 | 843.9 | +90 mm |
| Seat tube length | 500 | 585 | +85 mm |
| Head tube length | 160 | 215 | +55 mm |
| Seat tube angle | not listed | 73.0° |
Differences are the Giant Contend AR minus the Trek Domane AL Gen 4. Full charts: 2025 Trek Domane AL Gen 4, 2027 Giant Contend AR.
Where each sits in its class
Trek Domane AL Gen 4Giant Contend AR
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 Gen 4AL 2 Gen 4 | Giant Contend AR1 |
|---|---|---|
| Fork | Trek Domane AL | Giant Advanced-Grade |
| Wheelset | Bontrager Paradigm 23 | Giant P-AR |
| Tire | Bontrager Kwaremont Comp | Giant Gavia Fondo 2 |
| Frame | not listed | Giant ALUXX-SL Grade |
| Shifter | not listed | Shimano CUES U6030 |
| Derailleur | not listed | Shimano CUES U6030, Shimano CUES U6000 |
| Cassette | not listed | Shimano CS-LG400 |
| Chain | not listed | KMC X11 |
| Crankset | not listed | Shimano CUES FC-U6030-1 |
| Bottom bracket | not listed | Shimano BB-RS501 |
| Rim | not listed | Giant P-AR |
| Brake | not listed | Shimano CUES U6030 F]160 R]160 |
| Handlebar | not listed | Giant Contact |
| Stem | not listed | Giant Contact Aerolight |
| Bar tape | not listed | Giant Cork Tape |
| Seatpost | not listed | D-Fuse |
| Saddle | not listed | Giant Approach |
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