2015 Specialized Allez Sport vs 2017 Specialized Tarmac Comp
The 56 is the Specialized Tarmac Comp size closest to your 56 Specialized Allez Sport. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Tarmac Comp
Compared with the Specialized Allez Sport in 56, the Specialized Tarmac Comp in 56 places the top of the head tube 10 mm lower and 3 mm further forward, relative to the bottom bracket. Its wheelbase is 4 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- −4 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −2 mm
- About the same
The two frames
Specialized Allez Sport, 56Specialized Tarmac Comp, 56Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Allez Sport 56 | Specialized Tarmac Comp 56 | Difference |
|---|---|---|---|
| Reach | 392mm | 395mm | +3 mm |
| Stack | 574mm | 564mm | −10 mm |
| Head tube angle | 73.5° | 73.5° | ±0.0° |
| Seat tube angle | 73.25° | 73.25° | ±0.0° |
| Effective top tube | 565mm | 565mm | ±0 mm |
| Chainstay length | 407mm | 405mm | −2 mm |
| Wheelbase | 990mm | 986mm | −4 mm |
| BB drop | 69mm | 69mm | ±0 mm |
| Standover | 805mm | 795mm | −10 mm |
| Seat tube length | 530mm | 501mm | −29 mm |
| Head tube length | 170mm | 160mm | −10 mm |
| BB height | not listed | 272.5mm | |
| Fork length | not listed | 368mm |
Differences are the Specialized Tarmac Comp minus the Specialized Allez Sport. Full charts: 2015 Specialized Allez Sport, 2017 Specialized Tarmac Comp.
Where each sits in its class
Specialized Allez SportSpecialized Tarmac Comp
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 Allez SportSport | Specialized Tarmac CompComp |
|---|---|---|
| Shifter | Shimano Sora | Shimano Ultegra R6800 |
| Derailleur | Shimano Sora | Shimano Ultegra R6800 |
| Chain | KMC X9 | KMC X-11 |
| Crankset | Shimano Sora | Shimano Ultegra |
| Wheelset | Specialized AXIS Classic | DT Swiss R460 |
| Tire | Specialized Espoir Sport | Specialized S-Works Turbo |
| Brake | Specialized Axis 1.0 | Shimano Ultegra |
| Saddle | Specialized Toupé Sport | Specialized Toupe Comp |
| Cassette | not listed | Shimano 105 R5800 |
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