2027 Trek Domane SL Gen 5 Frameset vs 2025 Giant Contend AR
The M is the Giant Contend AR size closest to your M Trek Domane SL Gen 5 Frameset. 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 SL Gen 5 Frameset in M, 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
- ±0 mm
- About the same
- Head angle
- +0.8°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Domane SL Gen 5 Frameset numbers we have for size M are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane SL Gen 5 Frameset M | Giant Contend AR M | Difference |
|---|---|---|---|
| Reach | 374 | 380 | +6 mm |
| Stack | 575 | 574 | −1 mm |
| Head tube angle | 71.2° | 72.0° | +0.8° |
| Effective top tube | 541 | not listed | |
| Chainstay length | 420 | 422 | +2 mm |
| Wheelbase | 1011 | 1011 | ±0 mm |
| BB drop | 80 | 80 | ±0 mm |
| Standover | 775 | 783 | +8 mm |
| Seat tube length | 500 | 480 | −20 mm |
| Head tube length | 159 | 150 | −9 mm |
| Seat tube angle | not listed | 73.5° |
Differences are the Giant Contend AR minus the Trek Domane SL Gen 5 Frameset. Full charts: 2027 Trek Domane SL Gen 5 Frameset, 2025 Giant Contend AR.
Where each sits in its class
Trek Domane SL Gen 5 FramesetGiant 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 SL Gen 5 FramesetSL Gen 5 Frameset | Giant Contend AR4 |
|---|---|---|
| Fork | Trek Domane SL | Giant Advanced-Grade |
| Frame | not listed | Giant ALUXX-grade |
| Shifter | not listed | Shimano Claris |
| Derailleur | not listed | Shimano Claris |
| Cassette | not listed | Shimano CS-HG50 Deore |
| Chain | not listed | KMC Z72 |
| Crankset | not listed | FSA Tempo |
| Tire | not listed | Giant S-R3 AC |
| Rim | not listed | Giant S-R2 |
| Brake | not listed | Tektro MD-C550, Shimano Claris |
| Handlebar | not listed | Giant Connect XS:40cm |
| Stem | not listed | Giant Sport XS:80mm |
| Grips | not listed | Velo cork tape |
| Seatpost | not listed | Giant D-Fuse |
| Saddle | not listed | Giant Approach |
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