2026 Giant Contend AR vs 2027 Specialized Roubaix SL8 Comp SRAM
The 58 is the Specialized Roubaix SL8 Comp SRAM size closest to your XL Giant Contend AR. 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 Specialized Roubaix SL8 Comp SRAM
Compared with the Giant Contend AR in XL, the Specialized Roubaix SL8 Comp SRAM in 58 places the top of the head tube 8 mm lower and 3 mm further back, relative to the bottom bracket. Its wheelbase is 15 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −8 mm
- Lower front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- −15 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +1 mm
- About the same
The two frames
Giant Contend AR, XLSpecialized Roubaix SL8 Comp SRAM, 58Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Giant Contend AR XL | Specialized Roubaix SL8 Comp SRAM 58 | Difference |
|---|---|---|---|
| Reach | 400 | 397mm | −3 mm |
| Stack | 638 | 630mm | −8 mm |
| Head tube angle | 72.5 | 73° | +0.5° |
| Seat tube angle | 73.0 | 73.5° | +0.5° |
| Effective top tube | 595 | 584mm | −11 mm |
| Chainstay length | 422 | 423mm | +1 mm |
| Wheelbase | 1046 | 1031mm | −15 mm |
| BB drop | 80 | 78mm | −2 mm |
| Standover | 856 | 809mm | −47 mm |
| Seat tube length | 585 | 505mm | −80 mm |
| Head tube length | 215 | 168mm | −47 mm |
| BB height | not listed | 271mm | |
| Fork length | not listed | 375mm |
Differences are the Specialized Roubaix SL8 Comp SRAM minus the Giant Contend AR. Full charts: 2026 Giant Contend AR, 2027 Specialized Roubaix SL8 Comp SRAM.
Where each sits in its class
Giant Contend ARSpecialized Roubaix SL8 Comp SRAM
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 | Giant Contend ARAR 1 | Specialized Roubaix SL8 Comp SRAMSL8 Comp - SRAM Rival AXS |
|---|---|---|
| Frame | Giant Contend | not listed |
| Fork | Giant Advanced-Grade Composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc | Specialized Future Shock 3.2 |
| Shifter | Shimano 105 Di2 | SRAM Rival AXS E1 |
| Derailleur | Shimano 105 Di2 | SRAM Rival AXS E1 |
| Cassette | Shimano 105 | SRAM Rival XG-1250 D1 |
| Chain | KMC X12L-1 | SRAM Rival Flattop E1 |
| Crankset | Shimano 105 | SRAM Rival E1 |
| Bottom bracket | Shimano BB-RS501 | SRAM DUB |
| Wheelset | Giant P-R2 Disc | DT Swiss G500 |
| Tire | Giant Gavia Fondo 2 | Specialized Mondo |
| Brake | Shimano 105 Di2 | SRAM Rival E1 |
| Rotor | Giant MPH | not listed |
| Handlebar | Giant D-Fuse SL | Specialized Hover |
| Stem | Giant Contact | Specialized Future |
| Grips | Velo Cork tape with gel | not listed |
| Headset | Giant OverDrive | not listed |
| Seatpost | Giant D-Fuse | Specialized S-Works Pave |
| Saddle | Giant Approach | Specialized Power Comp |
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