2015 Specialized Tarmac Disc S-Build vs 2015 Specialized Allez Elite
The 58 is the Specialized Allez Elite size closest to your 58 Specialized Tarmac Disc S-Build. 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 Disc S-Build in 58, the Specialized Allez Elite in 58 places the top of the head tube 14 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 4 mm longer, which can contribute to stability at speed.
- Frame stack
- +14 mm
- Higher front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +4 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Disc S-Build, 58Specialized Allez Elite, 58Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Disc S-Build 58 | Specialized Allez Elite 58 | Difference |
|---|---|---|---|
| Reach | 402mm | 402mm | ±0 mm |
| Stack | 591mm | 605mm | +14 mm |
| Head tube angle | 73.5° | 73.5° | ±0.0° |
| Seat tube angle | 73° | 73° | ±0.0° |
| Effective top tube | 582mm | 587mm | +5 mm |
| Chainstay length | 407mm | 407mm | ±0 mm |
| Wheelbase | 1003mm | 1007mm | +4 mm |
| BB drop | 67.5mm | 67.5mm | ±0 mm |
| Standover | 826mm | 817mm | −9 mm |
| Seat tube length | 522mm | 540mm | +18 mm |
| Head tube length | 190mm | 205mm | +15 mm |
Differences are the Specialized Allez Elite minus the Specialized Tarmac Disc S-Build. Full charts: 2015 Specialized Tarmac Disc S-Build, 2015 Specialized Allez Elite.
Where each sits in its class
Specialized Tarmac Disc S-BuildSpecialized 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 Disc S-BuildS-Works Disc S-Build | Specialized Allez EliteElite |
|---|---|---|
| Wheelset | Roval Rapide CLX 40 SCS | Specialized AXIS Classic |
| Shifter | not listed | Shimano Tiagra |
| Derailleur | not listed | Shimano Tiagra |
| Cassette | not listed | Shimano Tiagra |
| Chain | not listed | KMC X-10 |
| Crankset | not listed | Shimano Tiagra |
| Tire | not listed | Specialized Espoir Sport |
| Brake | not listed | Specialized Axis 1.0 |
| Saddle | not listed | Specialized Toupé Sport |
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