2019 Specialized Allez Sport vs 2020 Specialized Roubaix
The 61 is the Specialized Roubaix size closest to your 61 Specialized Allez Sport. 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
Compared with the Specialized Allez Sport in 61, the Specialized Roubaix in 61 places the top of the head tube 16 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 6 mm longer, which can contribute to stability at speed.
- Frame stack
- +16 mm
- Higher front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +6 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +3 mm
- Longer: more planted
The two frames
Specialized Allez Sport, 61Specialized Roubaix, 61Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Allez Sport 61 | Specialized Roubaix 61 | Difference |
|---|---|---|---|
| Reach | 396mm | 398 | +2 mm |
| Stack | 649mm | 665 | +16 mm |
| Head tube angle | 74° | 74 | ±0.0° |
| Seat tube angle | 73.25° | 73.5 | +0.3° |
| Effective top tube | 591mm | not listed | |
| Chainstay length | 415mm | 418 | +3 mm |
| Wheelbase | 1018mm | 1024 | +6 mm |
| BB drop | 74.5mm | 74.5 | ±0 mm |
| BB height | 265.5mm | 268mm | +3 mm |
| Standover | 850mm | 844 | −6 mm |
| Seat tube length | 580mm | 547 | −33 mm |
| Fork length | 375mm | 370 | −5 mm |
| Head tube length | 235mm | 205 | −30 mm |
Differences are the Specialized Roubaix minus the Specialized Allez Sport. Full charts: 2019 Specialized Allez Sport, 2020 Specialized Roubaix.
Where each sits in its class
Specialized Allez SportSpecialized Roubaix
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 Allez SportSport | Specialized RoubaixRoubaix |
|---|---|---|
| Shifter | Shimano Sora | Shimano Tiagra |
| Derailleur | Shimano Sora | Shimano Tiagra |
| Chain | KMC X9 | KMC X10 |
| Crankset | Praxis Alba M30 | Praxis Alba |
| Wheelset | Specialized Axis Sport | Specialized Axis Sport |
| Tire | Specialized Espoir Sport | Specialized Espoir Sport |
| Brake | Specialized Axis 1.0 | Shimano Tiagra |
| Saddle | Specialized Toupé Sport | Specialized Power Sport |
| Frame | not listed | Specialized FACT 10R |
| Fork | not listed | Specialized Future Shock 1.5 |
| Cassette | not listed | Shimano Tiagra |
| Chainring | not listed | Praxis Alba |
| Handlebar | not listed | Specialized Hover |
| Stem | not listed | Specialized 3D-forged |
| Seatpost | not listed | Specialized S-Works Pave |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app



