2019 Specialized Roubaix Frameset vs 2021 Specialized Allez Sport
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Allez Sport
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- +4 mm
- Longer: steadier at speed
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- +7 mm
- Longer: more planted
The two frames
Only the Specialized Roubaix Frameset is drawn. The Specialized Allez Sport numbers we have for size 54 are missing the reach, stack and head angle.
Geometry side by side
| Measurement | Specialized Roubaix Frameset 52 | Specialized Allez Sport 54 | Difference |
|---|---|---|---|
| Reach | 371mm | not listed | |
| Stack | 569mm | not listed | |
| Head tube angle | 72.25° | not listed | |
| Seat tube angle | 74° | 73.25° | −0.8° |
| Effective top tube | 534.9mm | not listed | |
| Chainstay length | 413mm | 420mm | +7 mm |
| Wheelbase | 987mm | 991mm | +4 mm |
| BB drop | 77.5mm | not listed | |
| Standover | 743mm | 763mm | +20 mm |
| Seat tube length | 462mm | 510mm | +48 mm |
| Head tube length | 110mm | 155mm | +45 mm |
| Fork length | not listed | 368mm |
Differences are the Specialized Allez Sport minus the Specialized Roubaix Frameset. Full charts: 2019 Specialized Roubaix Frameset, 2021 Specialized Allez Sport.
Where each sits in its class
Specialized Roubaix FramesetSpecialized 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 Roubaix FramesetS-Works Frameset | Specialized Allez SportSport |
|---|---|---|
| Seatpost | Specialized S-Works CG-R | not listed |
| Frame | not listed | Specialized Allez |
| Fork | not listed | Specialized FACT |
| Shifter | not listed | Shimano Sora |
| Derailleur | not listed | Shimano Sora |
| Chain | not listed | KMC X9 |
| Crankset | not listed | Praxis Alba |
| Chainring | not listed | Praxis Alba |
| Wheelset | not listed | Specialized Axis Sport |
| Tire | not listed | Specialized Roadsport |
| Brake | not listed | Specialized Axis 1.0 |
| Handlebar | not listed | Specialized Shallow Drop |
| Saddle | not listed | Specialized Bridge Saddle |
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