2017 Specialized Roubaix vs 2019 Specialized Allez Sport
The Specialized Allez Sport size closest to your 54 is the 56. Compare the 56 instead
What changes on the Specialized Allez Sport
Compared with the Specialized Roubaix in 54, the Specialized Allez Sport in 52 places the top of the head tube 33 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −33 mm
- Lower front end
- Frame reach
- +1 mm
- About the same reach
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- +0.3°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Roubaix, 54Specialized Allez Sport, 52Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix 54 | Specialized Allez Sport 52 | Difference |
|---|---|---|---|
| Reach | 375 | 376mm | +1 mm |
| Stack | 585 | 552mm | −33 mm |
| Head tube angle | 72.75 | 73° | +0.3° |
| Seat tube angle | 74 | 73.25° | −0.8° |
| Effective top tube | 545mm | 542mm | −3 mm |
| Chainstay length | 415 | 415mm | ±0 mm |
| Wheelbase | 987 | 978mm | −9 mm |
| BB drop | 76 | 77mm | +1 mm |
| Standover | 762 | 755mm | −7 mm |
| Seat tube length | 481 | 490mm | +9 mm |
| Head tube length | 125 | 135mm | +10 mm |
| BB height | not listed | 263mm | |
| Fork length | not listed | 375mm |
Differences are the Specialized Allez Sport minus the Specialized Roubaix. Full charts: 2017 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 Comp | Specialized Allez SportSport |
|---|---|---|
| Frame | Specialized FACT 9r carbon | not listed |
| Fork | Specialized S-Works FACT | not listed |
| Shifter | Shimano RS505 | Shimano Sora |
| Derailleur | Shimano Ultegra | Shimano Sora |
| Cassette | Shimano 105 | not listed |
| Chain | KMC X11 | KMC X9 |
| Crankset | Praxis Zayante | Praxis Alba M30 |
| Chainring | Praxis Zayante | not listed |
| Wheelset | DT Swiss R470 Disc | Specialized Axis Sport |
| Tire | Specialized Turbo | Specialized Espoir Sport |
| Rim | DT Swiss R470 | not listed |
| Brake | Shimano 505 | Specialized Axis 1.0 |
| Rotor | Shimano Rotor | not listed |
| Handlebar | Specialized Hover | not listed |
| Stem | Specialized 3D-forged | not listed |
| Bar tape | Specialized S-Wrap Roubaix | not listed |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Phenom | Specialized Toupé Sport |
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