2026 Specialized Roubaix SL8 vs 2026 Giant Contend AR
The Giant Contend AR size closest to your 54 is the M. Compare the M instead
What changes on the Giant Contend AR
Compared with the Specialized Roubaix SL8 in 54, the Giant Contend AR in L places the top of the head tube 53 mm higher and 19 mm further forward, relative to the bottom bracket. Its wheelbase is 41 mm longer, which can contribute to stability at speed.
- Frame stack
- +53 mm
- Higher front end
- Frame reach
- +19 mm
- Longer frame reach
- Wheelbase
- +41 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 L | Difference |
|---|---|---|---|
| Reach | 381 | 400 | +19 mm |
| Stack | 585 | 638 | +53 mm |
| Head tube angle | not listed | 72.5 | |
| Seat tube angle | 74 | 73.0 | −1.0° |
| Chainstay length | 420 | 422 | +2 mm |
| Wheelbase | 1005 | 1046 | +41 mm |
| BB height | 270mm | not listed | |
| Effective top tube | not listed | 595 | |
| BB drop | not listed | 80 | |
| Standover | not listed | 856 | |
| Seat tube length | not listed | 585 | |
| Head tube length | not listed | not listed |
Differences are the Giant Contend AR minus the Specialized Roubaix SL8. Full charts: 2026 Specialized Roubaix SL8, 2026 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 ARAR 1 |
|---|---|---|
| Frame | Specialized Roubaix | Giant Contend |
| Fork | Specialized Future Shock 3.3 | Giant Advanced-Grade Composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc |
| Shifter | SRAM Red AXS E1 | Shimano 105 Di2 |
| Derailleur | SRAM RED AXS E1 | Shimano 105 Di2 |
| Cassette | SRAM RED XG-1290 E1 | Shimano 105 |
| Chain | SRAM Red E1 flat-top | KMC X12L-1 |
| Crankset | SRAM RED AXS Power Meter | Shimano 105 |
| Bottom bracket | SRAM DUB | Shimano BB-RS501 |
| Wheelset | Roval Rapide CLX | Giant P-R2 Disc |
| Tire | Specialized Mondo TLR Endurance | Giant Gavia Fondo 2 |
| Brake | Specialized override | Shimano 105 Di2 |
| Rotor | Shimano Ultegra | Giant MPH |
| Handlebar | Roval Alpinist | Giant D-Fuse SL |
| Stem | Roval Alpinist | Giant Contact |
| Grips | Specialized Supacaz Super Sticky Kush | Velo Cork tape with gel |
| Seatpost | Specialized S-Works Pave | Giant D-Fuse |
| Saddle | Specialized S-Works Power | Giant Approach |
| Headset | not listed | Giant OverDrive |
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