2027 Trek Domane AL 4 Gen 4 vs 2027 Giant Contend AR
The M is the Giant Contend AR size closest to your 54 Trek Domane AL 4 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 Giant Contend AR
Compared with the Trek Domane AL 4 Gen 4 in 54, the Giant Contend AR in M places the top of the head tube at about the same height and 6 mm further forward, relative to the bottom bracket.
- Frame stack
- −1 mm
- About the same height
- Frame reach
- +6 mm
- Longer frame reach
- Wheelbase
- +1 mm
- About the same
- Head angle
- +0.7°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
Trek Domane AL 4 Gen 4, 54Giant Contend AR, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Domane AL 4 Gen 4 54 | Giant Contend AR M | Difference |
|---|---|---|---|
| Reach | 374 | 379.9 | +6 mm |
| Stack | 575 | 574.3 | −1 mm |
| Head tube angle | 71.3 | 72.0° | +0.7° |
| Seat tube angle | 73.7 | 73.5° | −0.2° |
| Effective top tube | 542 | not listed | |
| Chainstay length | 420 | 422 | +2 mm |
| Wheelbase | 1010 | 1010.6 | +1 mm |
| BB drop | 80 | 80 | ±0 mm |
| Standover | 754 | 770.1 | +16 mm |
| Seat tube length | 500 | 500 | ±0 mm |
| Head tube length | 160 | 150 | −10 mm |
Differences are the Giant Contend AR minus the Trek Domane AL 4 Gen 4. Full charts: 2027 Trek Domane AL 4 Gen 4, 2027 Giant Contend AR.
Where each sits in its class
Trek Domane AL 4 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 4 Gen 4Gen 4 | Giant Contend AR1 |
|---|---|---|
| Frame | Trek Domane AL | Giant ALUXX-SL Grade |
| Fork | Trek Domane AL | Giant Advanced-Grade |
| Shifter | Shimano Tiagra R4020 | Shimano CUES U6030 |
| Derailleur | Shimano Tiagra R4000, Shimano Tiagra 4700 | Shimano CUES U6030, Shimano CUES U6000 |
| Cassette | Shimano RS400 | Shimano CS-LG400 |
| Chain | Shimano LG500 | KMC X11 |
| Crankset | Shimano Tiagra R4000 | Shimano CUES FC-U6030-1 |
| Chainring | Shimano Tiagra 4700 | not listed |
| Bottom bracket | Shimano RS501 | Shimano BB-RS501 |
| Wheelset | Bontrager Paradigm 23 | Giant P-AR |
| Tire | Bontrager Kwaremont | Giant Gavia Fondo 2 |
| Hub | Formula RX-142, Formula RX-512 | not listed |
| Rim | Bontrager Paradigm 23 | Giant P-AR |
| Rotor | Shimano SM-RT66 | not listed |
| Handlebar | Bontrager Comp | Giant Contact |
| Stem | Bontrager Elite | Giant Contact Aerolight |
| Bar tape | Bontrager Supertack Perf | Giant Cork Tape |
| Headset | Bontrager Expander Plug | not listed |
| Seatpost | Bontrager Comp | D-Fuse |
| Saddle | Trek Verse Short | Giant Approach |
| Brake | not listed | Shimano CUES U6030 F]160 R]160 |
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