2017 Specialized Tarmac Disc eTap vs 2015 Specialized Allez E5 Smartweld
The 54 is the Specialized Allez E5 Smartweld size closest to your 54 Specialized Tarmac Disc eTap. 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 Disc eTap in 54, the Specialized Allez E5 Smartweld 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
- ±0 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Disc eTap, 54Specialized Allez E5 Smartweld, 54Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Disc eTap 54 | Specialized Allez E5 Smartweld 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 | 548mm | ±0 mm |
| Chainstay length | 405mm | 405mm | ±0 mm |
| Wheelbase | 978mm | 978mm | ±0 mm |
| BB drop | 69mm | 69mm | ±0 mm |
| BB height | 272.5mm | not listed | |
| Standover | 775mm | 798mm | +23 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 E5 Smartweld minus the Specialized Tarmac Disc eTap. Full charts: 2017 Specialized Tarmac Disc eTap, 2015 Specialized Allez E5 Smartweld.
Where each sits in its class
Specialized Tarmac Disc eTapSpecialized 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 Disc eTapS-Works Disc eTap | Specialized Allez E5 Smartweld |
|---|---|---|
| Shifter | SRAM eTap Hydro | not listed |
| Derailleur | SRAM eTap | not listed |
| Cassette | SRAM Red 22 | not listed |
| Chain | SRAM Red 22 | not listed |
| Crankset | SRAM Red 22 | not listed |
| Wheelset | Roval CLX 32 | not listed |
| Tire | Specialized Turbo Cotton | not listed |
| Brake | SRAM RED | not listed |
| Saddle | Specialized S-Works Toupe | not listed |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
