2017 Specialized Tarmac Expert Disc vs 2015 Specialized Allez Elite
The 54 is the Specialized Allez Elite size closest to your 54 Specialized Tarmac Expert Disc. 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 Allez Elite
Compared with the Specialized Tarmac Expert Disc in 54, the Specialized Allez Elite in 54 places the top of the head tube 4 mm higher and about as far forward, relative to the bottom bracket.
- Frame stack
- +4 mm
- Higher front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- −1 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Expert Disc, 54Specialized Allez Elite, 54Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Expert Disc 54 | Specialized Allez Elite 54 | Difference |
|---|---|---|---|
| Reach | 387mm | 387mm | ±0 mm |
| Stack | 543mm | 547mm | +4 mm |
| Head tube angle | 73° | 73° | ±0.0° |
| Seat tube angle | 73.5° | 73.5° | ±0.0° |
| Effective top tube | 548mm | 549mm | +1 mm |
| Chainstay length | 405mm | 405mm | ±0 mm |
| Wheelbase | 978mm | 977mm | −1 mm |
| BB drop | 69mm | 69mm | ±0 mm |
| BB height | 272.5mm | not listed | |
| Standover | 775mm | 769mm | −6 mm |
| Seat tube length | 481mm | 500mm | +19 mm |
| Fork length | 368mm | not listed | |
| Head tube length | 140mm | 145mm | +5 mm |
Differences are the Specialized Allez Elite minus the Specialized Tarmac Expert Disc. Full charts: 2017 Specialized Tarmac Expert Disc, 2015 Specialized Allez Elite.
Where each sits in its class
Specialized Tarmac Expert DiscSpecialized Allez Elite
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 Tarmac Expert DiscExpert Disc | Specialized Allez EliteElite |
|---|---|---|
| Shifter | Shimano ST-RS685 | Shimano Tiagra |
| Derailleur | Shimano Ultegra R6800 | Shimano Tiagra |
| Cassette | Shimano Ultegra | Shimano Tiagra |
| Chain | Shimano HG70 | KMC X-10 |
| Crankset | FSA SL-K | Shimano Tiagra |
| Wheelset | DT Swiss R470 | Specialized AXIS Classic |
| Tire | Specialized S-Works Turbo | Specialized Espoir Sport |
| Brake | Shimano BR-785 | Specialized Axis 1.0 |
| Saddle | Specialized Toupe Expert | Specialized Toupé Sport |
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