2019 Specialized Allez Sport vs 2020 Specialized Roubaix
The Specialized Roubaix size closest to your 54 is the 52. Compare the 52 instead
What changes on the Specialized Roubaix
Compared with the Specialized Allez Sport in 54, the Specialized Roubaix in 44 places the top of the head tube 30 mm lower and 27 mm further back, relative to the bottom bracket. Its wheelbase is 7 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −30 mm
- Lower front end
- Frame reach
- −27 mm
- Shorter frame reach
- Wheelbase
- −7 mm
- Shorter: quicker to change direction
- Head angle
- −3.0°
- Slacker: calmer steering
- Chainstays
- −2 mm
- About the same
The two frames
Specialized Allez Sport, 54Specialized Roubaix, 44Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Allez Sport 54 | Specialized Roubaix 44 | Difference |
|---|---|---|---|
| Reach | 380mm | 353 | −27 mm |
| Stack | 570mm | 540 | −30 mm |
| Head tube angle | 73° | 70 | −3.0° |
| Seat tube angle | 73.25° | 74 | +0.8° |
| Effective top tube | 552mm | not listed | |
| Chainstay length | 415mm | 413 | −2 mm |
| Wheelbase | 988mm | 981 | −7 mm |
| BB drop | 76mm | 77.5 | +2 mm |
| BB height | 264mm | 265 | +1 mm |
| Standover | 775mm | 682 | −93 mm |
| Seat tube length | 510mm | 365 | −145 mm |
| Fork length | 375mm | 370 | −5 mm |
| Head tube length | 155mm | 90 | −65 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 |
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