2019 Specialized Roubaix Expert 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
- −11 mm
- Shorter: quicker to change direction
- Head angle
- −1.3°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Specialized Roubaix Expert is drawn. The Specialized Allez Sport numbers we have for size 49 are missing the reach and stack.
Geometry side by side
| Measurement | Specialized Roubaix Expert 56 | Specialized Allez Sport 49 | Difference |
|---|---|---|---|
| Reach | 381mm | not listed | |
| Stack | 611mm | not listed | |
| Head tube angle | 73.5° | 72.25° | −1.3° |
| Seat tube angle | 73.5° | 75.25° | +1.8° |
| Effective top tube | 561.8mm | not listed | |
| Chainstay length | 415mm | 420mm | +5 mm |
| Wheelbase | 993mm | 982mm | −11 mm |
| BB drop | 76mm | not listed | |
| Standover | 785mm | 720mm | −65 mm |
| Seat tube length | 501mm | 460mm | −41 mm |
| Head tube length | 150mm | 125mm | −25 mm |
| Fork length | not listed | 368mm |
Differences are the Specialized Allez Sport minus the Specialized Roubaix Expert. Full charts: 2019 Specialized Roubaix Expert, 2021 Specialized Allez Sport.
Where each sits in its class
Specialized Roubaix ExpertSpecialized 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 ExpertExpert | Specialized Allez SportSport |
|---|---|---|
| Shifter | Shimano Ultegra Di2 | Shimano Sora |
| Derailleur | Shimano Ultegra R8050 Di2 | 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 | Roval C38 | Specialized Axis Sport |
| Tire | Specialized Turbo Pro | Specialized Roadsport |
| Brake | Shimano Ultegra | Specialized Axis 1.0 |
| Handlebar | Specialized Expert Hover | Specialized Shallow Drop |
| Seatpost | Specialized S-Works CG-R | not listed |
| Saddle | Specialized Phenom Expert | Specialized Bridge Saddle |
| Frame | not listed | Specialized Allez |
| Fork | not listed | Specialized FACT |
| Chainring | not listed | Praxis Alba |
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