2026 Specialized Roubaix SL8 vs 2027 Giant Contend AR
The ML is the Giant Contend AR size closest to your 54 Specialized Roubaix SL8. 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 Specialized Roubaix SL8 in 54, the Giant Contend AR in ML places the top of the head tube 10 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 10 mm longer, which can contribute to stability at speed.
- Frame stack
- +10 mm
- Higher front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +10 mm
- Longer: steadier at speed
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- +2 mm
- About the same
The two frames
We can't draw these frames yet. The Specialized Roubaix SL8 numbers we have for size 54 are missing the head angle. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Roubaix SL8 54 | Giant Contend AR ML | Difference |
|---|---|---|---|
| Reach | 381 | 383 | +2 mm |
| Stack | 585 | 595.3 | +10 mm |
| Head tube angle | not listed | 72.5° | |
| Seat tube angle | 74 | 73.0° | −1.0° |
| Chainstay length | 420 | 422 | +2 mm |
| Wheelbase | 1005 | 1015.4 | +10 mm |
| BB height | 270mm | not listed | |
| BB drop | not listed | 80 | |
| Standover | not listed | 798.5 | |
| Seat tube length | not listed | 535 | |
| Head tube length | not listed | 170 |
Differences are the Giant Contend AR minus the Specialized Roubaix SL8. Full charts: 2026 Specialized Roubaix SL8, 2027 Giant Contend AR.
Where each sits in its class
Specialized Roubaix SL8Giant 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 | Specialized Roubaix SL8S-Works SL8 | Giant Contend AR1 |
|---|---|---|
| Frame | Specialized Roubaix | Giant ALUXX-SL Grade |
| Fork | Specialized Future Shock 3.3 | Giant Advanced-Grade |
| Shifter | SRAM Red AXS E1 | Shimano CUES U6030 |
| Derailleur | SRAM RED AXS E1 | Shimano CUES U6030, Shimano CUES U6000 |
| Cassette | SRAM RED XG-1290 E1 | Shimano CS-LG400 |
| Chain | SRAM Red E1 flat-top | KMC X11 |
| Crankset | SRAM RED AXS Power Meter | Shimano CUES FC-U6030-1 |
| Bottom bracket | SRAM DUB | Shimano BB-RS501 |
| Wheelset | Roval Rapide CLX | Giant P-AR |
| Tire | Specialized Mondo TLR Endurance | Giant Gavia Fondo 2 |
| Brake | Specialized override | Shimano CUES U6030 F]160 R]160 |
| Rotor | Shimano Ultegra | not listed |
| Handlebar | Roval Alpinist | Giant Contact |
| Stem | Roval Alpinist | Giant Contact Aerolight |
| Grips | Specialized Supacaz Super Sticky Kush | not listed |
| Seatpost | Specialized S-Works Pave | D-Fuse |
| Saddle | Specialized S-Works Power | Giant Approach |
| Rim | not listed | Giant P-AR |
| Bar tape | not listed | Giant Cork Tape |
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