2014 Specialized Allez vs 2015 Specialized Tarmac Expert
The Specialized Tarmac Expert size closest to your 540.0 is the 54. Compare the 54 instead
What changes on the Specialized Tarmac Expert
Compared with the Specialized Allez in 540.0, the Specialized Tarmac Expert in 58 places the top of the head tube 44 mm higher and 15 mm further forward, relative to the bottom bracket. Its wheelbase is 25 mm longer, which can contribute to stability at speed.
- Frame stack
- +44 mm
- Higher front end
- Frame reach
- +15 mm
- Longer frame reach
- Wheelbase
- +25 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
Specialized Allez, 540.0Specialized Tarmac Expert, 58Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Allez 540.0 | Specialized Tarmac Expert 58 | Difference |
|---|---|---|---|
| Reach | 387.037mm | 402mm | +15 mm |
| Stack | 547.384mm | 591mm | +44 mm |
| Head tube angle | 73° | 73.5° | +0.5° |
| Seat tube angle | 73.5° | 73° | −0.5° |
| Chainstay length | 405mm | 407mm | +2 mm |
| Wheelbase | 978mm | 1003mm | +25 mm |
| Standover | 798mm | 826mm | +28 mm |
| Seat tube length | 500mm | 522mm | +22 mm |
| Head tube length | 145mm | 190mm | +45 mm |
| Effective top tube | not listed | 582mm | |
| BB drop | not listed | 67.5mm |
Differences are the Specialized Tarmac Expert minus the Specialized Allez. Full charts: 2014 Specialized Allez, 2015 Specialized Tarmac Expert.
Where each sits in its class
Specialized AllezSpecialized Tarmac Expert
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 ExpertExpert |
|---|---|---|
| Shifter | Shimano Claris R2400 | Shimano Ultegra |
| Derailleur | Shimano Claris R2400 | Shimano Ultegra |
| Cassette | Shimano HG50 | Shimano Ultegra |
| Chain | KMC Z51 | Shimano Ultegra |
| Crankset | Shimano Claris R2400 | not listed |
| Wheelset | Specialized AXIS Classic | Fulcrum S4 |
| Tire | Specialized Espoir Sport | Specialized Turbo Pro |
| Brake | Shimano Claris R2400 | Shimano Ultegra |
| Saddle | Specialized Riva | Specialized Toupe Expert |
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