2020 Specialized Roubaix Comp 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
- +3 mm
- Longer: steadier at speed
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Specialized Roubaix Comp 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 Comp 54 | Specialized Allez Sport 54 | Difference |
|---|---|---|---|
| Reach | 376mm | not listed | |
| Stack | 585mm | not listed | |
| Head tube angle | 72.75° | not listed | |
| Seat tube angle | 74° | 73.25° | −0.8° |
| Chainstay length | 415mm | 420mm | +5 mm |
| Wheelbase | 988mm | 991mm | +3 mm |
| BB drop | 76mm | not listed | |
| BB height | 266mm | not listed | |
| Standover | 762mm | 763mm | +1 mm |
| Seat tube length | 465mm | 510mm | +45 mm |
| Fork length | 370mm | 368mm | −2 mm |
| Head tube length | 125mm | 155mm | +30 mm |
Differences are the Specialized Allez Sport minus the Specialized Roubaix Comp. Full charts: 2020 Specialized Roubaix Comp, 2021 Specialized Allez Sport.
Where each sits in its class
Specialized Roubaix CompSpecialized 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 Roubaix CompComp | Specialized Allez SportSport |
|---|---|---|
| Fork | Specialized Future Shock 1.5 | Specialized FACT |
| Shifter | Shimano Ultegra | Shimano Sora |
| Derailleur | Shimano Ultegra R8000, Shimano GRX RX800 | Shimano Sora |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | KMC X9 |
| Crankset | Shimano Ultegra R8000 | Praxis Alba |
| Bottom bracket | Shimano Ultegra | not listed |
| Wheelset | DT Swiss R470 | Specialized Axis Sport |
| Tire | Specialized Turbo Pro | Specialized Roadsport |
| Brake | Shimano 105 | Specialized Axis 1.0 |
| Handlebar | Specialized Hover | Specialized Shallow Drop |
| Stem | Specialized Future | not listed |
| Seatpost | Specialized S-Works Pave | not listed |
| Saddle | Specialized Power Sport | Specialized Bridge Saddle |
| Frame | not listed | Specialized Allez |
| Chainring | not listed | Praxis Alba |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
