2023 Specialized Roubaix SL8 Comp vs 2025 Giant Contend AR
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Giant Contend AR
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- +10 mm
- Longer: steadier at speed
- Head angle
- +0.2°
- About the same head angle
- Chainstays
- +2 mm
- About the same
The two frames
We can't draw these frames yet. The Specialized Roubaix SL8 Comp numbers we have for size 54 are missing the reach and stack. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Roubaix SL8 Comp 54 | Giant Contend AR ML | Difference |
|---|---|---|---|
| Reach | not listed | 383 | |
| Stack | not listed | 595 | |
| Head tube angle | 72.3 | 72.5° | +0.2° |
| Seat tube angle | 74 | 73.0° | −1.0° |
| Effective top tube | 550 | not listed | |
| Chainstay length | 420 | 422 | +2 mm |
| Wheelbase | 1005 | 1015 | +10 mm |
| BB height | 270 | not listed | |
| Standover | 766 | 810 | +44 mm |
| Seat tube length | 465 | 515 | +50 mm |
| Head tube length | 122 | 170 | +48 mm |
| BB drop | not listed | 80 |
Differences are the Giant Contend AR minus the Specialized Roubaix SL8 Comp. Full charts: 2023 Specialized Roubaix SL8 Comp, 2025 Giant Contend AR.
Where each sits in its class
Specialized Roubaix SL8 CompGiant Contend AR
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
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 | Specialized Roubaix SL8 CompSL8 Comp | Giant Contend AR4 |
|---|---|---|
| Frame | Specialized FACT 10R | Giant ALUXX-grade |
| Fork | Specialized Future Shock 3.2 | Giant Advanced-Grade |
| Shifter | Shimano 105 | Shimano Claris |
| Derailleur | Shimano 105 | Shimano Claris |
| Cassette | Shimano 105 | Shimano CS-HG50 Deore |
| Chain | Shimano 105 | KMC Z72 |
| Crankset | Shimano 105 | FSA Tempo |
| Chainring | Shimano 105 | not listed |
| Bottom bracket | Shimano 105 | not listed |
| Wheelset | DT Swiss G540 | not listed |
| Tire | S Works Mondo, S Works Mondo 2BR | Giant S-R3 AC |
| Brake | Shimano 105 | Tektro MD-C550, Shimano Claris |
| Rotor | Shimano 105 | not listed |
| Handlebar | Specialized Hover | Giant Connect XS:40cm |
| Stem | Specialized Future Stem | Giant Sport XS:80mm |
| Bar tape | Supacaz Super Sticky Kush | not listed |
| Seatpost | Specialized S-Works Pavé | Giant D-Fuse |
| Saddle | Specialized Body Geometry Power Sport | Giant Approach |
| Rim | not listed | Giant S-R2 |
| Grips | not listed | Velo cork tape |
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