2019 Specialized Roubaix 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 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 52 | Specialized Allez Sport 54 | Difference |
|---|---|---|---|
| Reach | 371 | not listed | |
| Stack | 569 | 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 | 413 | 420mm | +7 mm |
| Wheelbase | 987 | 991mm | +4 mm |
| BB drop | 77.5 | not listed | |
| Standover | 743 | 763mm | +20 mm |
| Seat tube length | 462 | 510mm | +48 mm |
| Head tube length | 110 | 155mm | +45 mm |
| Fork length | not listed | 368mm |
Differences are the Specialized Allez Sport minus the Specialized Roubaix. Full charts: 2019 Specialized Roubaix, 2021 Specialized Allez Sport.
Where each sits in its class
Specialized RoubaixSpecialized Allez Sport
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
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 9r | Specialized Allez |
| Shifter | Shimano Tiagra | Shimano Sora |
| Derailleur | Shimano Tiagra, Shimano Tiagra GS | Shimano Sora |
| Cassette | Shimano Tiagra | not listed |
| Chain | KMC X-10 | KMC X9 |
| Crankset | Shimano Tiagra 4700 | Praxis Alba |
| Chainring | Shimano 50T, Shimano 34T | Praxis Alba |
| Bottom bracket | Shimano Tiagra | not listed |
| Wheelset | Specialized Axis Sport | Specialized Axis Sport |
| Tire | Specialized Espoir Sport | Specialized Roadsport |
| Brake | Tektro Spyre | Specialized Axis 1.0 |
| Rotor | Tektro Spyre | not listed |
| Handlebar | Specialized Comp Hover | Specialized Shallow Drop |
| Stem | Specialized 3D-forged alloy | not listed |
| Seatpost | Specialized Alloy | not listed |
| Saddle | Specialized Toupé Sport | Specialized Bridge Saddle |
| Fork | not listed | Specialized FACT |
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