2015 Specialized Allez vs 2017 Specialized Tarmac Pro
The Specialized Tarmac Pro size closest to your 54 is the 54. Compare the 54 instead
What changes on the Specialized Tarmac Pro
Compared with the Specialized Allez in 54, the Specialized Tarmac Pro in 49 places the top of the head tube 44 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 10 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −44 mm
- Lower front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- −10 mm
- Shorter: quicker to change direction
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- −2 mm
- About the same
The two frames
Specialized Allez, 54Specialized Tarmac Pro, 49Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Allez 54 | Specialized Tarmac Pro 49 | Difference |
|---|---|---|---|
| Reach | 387mm | 386mm | −1 mm |
| Stack | 548mm | 504mm | −44 mm |
| Head tube angle | 73° | 72.25° | −0.8° |
| Seat tube angle | 73.5° | 75.5° | +2.0° |
| Effective top tube | 548mm | 518mm | −30 mm |
| Chainstay length | 407mm | 405mm | −2 mm |
| Wheelbase | 980mm | 970mm | −10 mm |
| BB drop | 69mm | 71.5mm | +3 mm |
| Standover | 783mm | 730mm | −53 mm |
| Seat tube length | 510mm | 431mm | −79 mm |
| Head tube length | 145mm | 100mm | −45 mm |
| BB height | not listed | 270mm | |
| Fork length | not listed | 368mm |
Differences are the Specialized Tarmac Pro minus the Specialized Allez. Full charts: 2015 Specialized Allez, 2017 Specialized Tarmac Pro.
Where each sits in its class
Specialized AllezSpecialized Tarmac Pro
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 AllezAllez | Specialized Tarmac ProPro |
|---|---|---|
| Shifter | Shimano Claris R2400 | not listed |
| Derailleur | Shimano Claris R2400 | not listed |
| Chain | KMC Z51 | not listed |
| Crankset | Shimano Claris | not listed |
| Wheelset | Specialized AXIS Classic | not listed |
| Tire | Specialized Espoir Sport | not listed |
| Saddle | Specialized Toupé Sport | not listed |
| Bottom bracket | not listed | Praxis 6806 |
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