2020 Specialized Roubaix vs 2019 Specialized Allez Sport
The 49 is the Specialized Allez Sport size closest to your 44 Specialized Roubaix. 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 Allez Sport
Compared with the Specialized Roubaix in 44, the Specialized Allez Sport in 49 places the top of the head tube 5 mm lower and 21 mm further forward, relative to the bottom bracket. Its wheelbase is 3 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- +21 mm
- Longer frame reach
- Wheelbase
- −3 mm
- Shorter: quicker to change direction
- Head angle
- +2.3°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
Specialized Roubaix, 44Specialized Allez Sport, 49Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix 44 | Specialized Allez Sport 49 | Difference |
|---|---|---|---|
| Reach | 353 | 374mm | +21 mm |
| Stack | 540 | 535mm | −5 mm |
| Head tube angle | 70 | 72.25° | +2.3° |
| Seat tube angle | 74 | 75.25° | +1.3° |
| Chainstay length | 413 | 415mm | +2 mm |
| Wheelbase | 981 | 978mm | −3 mm |
| BB drop | 77.5 | 77mm | −1 mm |
| BB height | 265 | 263mm | −2 mm |
| Standover | 682 | 740mm | +58 mm |
| Seat tube length | 365 | 460mm | +95 mm |
| Fork length | 370 | 375mm | +5 mm |
| Head tube length | 90 | 120mm | +30 mm |
| Effective top tube | not listed | 515mm |
Differences are the Specialized Allez Sport minus the Specialized Roubaix. Full charts: 2020 Specialized Roubaix, 2019 Specialized Allez Sport.
Where each sits in its class
Specialized RoubaixSpecialized Allez Sport
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 RoubaixRoubaix | Specialized Allez SportSport |
|---|---|---|
| Frame | Specialized FACT 10R | not listed |
| Fork | Specialized Future Shock 1.5 | not listed |
| Shifter | Shimano Tiagra | Shimano Sora |
| Derailleur | Shimano Tiagra | Shimano Sora |
| Cassette | Shimano Tiagra | not listed |
| Chain | KMC X10 | KMC X9 |
| Crankset | Praxis Alba | Praxis Alba M30 |
| Chainring | Praxis Alba | not listed |
| Wheelset | Specialized Axis Sport | Specialized Axis Sport |
| Tire | Specialized Espoir Sport | Specialized Espoir Sport |
| Brake | Shimano Tiagra | Specialized Axis 1.0 |
| Handlebar | Specialized Hover | not listed |
| Stem | Specialized 3D-forged | not listed |
| Seatpost | Specialized S-Works Pave | not listed |
| Saddle | Specialized Power Sport | Specialized Toupé Sport |
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