2015 Specialized Tarmac Expert vs 2015 Specialized Allez E5 Smartweld
The 61 is the Specialized Allez E5 Smartweld size closest to your 64 Specialized Tarmac Expert. 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 E5 Smartweld
Compared with the Specialized Tarmac Expert in 64, the Specialized Allez E5 Smartweld in 61 places the top of the head tube 5 mm lower and 7 mm further back, relative to the bottom bracket. Its wheelbase is 3 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- −7 mm
- Shorter frame reach
- Wheelbase
- −3 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Expert, 64Specialized Allez E5 Smartweld, 61Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Expert 64 | Specialized Allez E5 Smartweld 61 | Difference |
|---|---|---|---|
| Reach | 415mm | 408mm | −7 mm |
| Stack | 636mm | 631mm | −5 mm |
| Head tube angle | 74.5° | 74° | −0.5° |
| Seat tube angle | 72.5° | 72.5° | ±0.0° |
| Effective top tube | 621mm | 600mm | −21 mm |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 1016mm | 1013mm | −3 mm |
| BB drop | 67.5mm | 67.5mm | ±0 mm |
| Standover | 850mm | 854mm | +4 mm |
| Seat tube length | 584mm | 580mm | −4 mm |
| Head tube length | 235mm | 230mm | −5 mm |
Differences are the Specialized Allez E5 Smartweld minus the Specialized Tarmac Expert. Full charts: 2015 Specialized Tarmac Expert, 2015 Specialized Allez E5 Smartweld.
Where each sits in its class
Specialized Tarmac ExpertSpecialized Allez E5 Smartweld
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 ExpertExpert | Specialized Allez E5 Smartweld |
|---|---|---|
| Shifter | Shimano Ultegra | not listed |
| Derailleur | Shimano Ultegra | not listed |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | not listed |
| Wheelset | Fulcrum S4 | not listed |
| Tire | Specialized Turbo Pro | not listed |
| Brake | Shimano Ultegra | not listed |
| Saddle | Specialized Toupe Expert | not listed |
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