2018 Specialized Tarmac Men's Comp Disc vs 2017 Specialized Allez E5
The 58 is the Specialized Allez E5 size closest to your 61 Specialized Tarmac Men's Comp 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 E5
Compared with the Specialized Tarmac Men's Comp Disc in 61, the Specialized Allez E5 in 58 places the top of the head tube 6 mm lower and 11 mm further back, relative to the bottom bracket. Its wheelbase is 5 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- −11 mm
- Shorter frame reach
- Wheelbase
- −5 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Men's Comp Disc, 61Specialized Allez E5, 58Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Men's Comp Disc 61 | Specialized Allez E5 58 | Difference |
|---|---|---|---|
| Reach | 408mm | 397mm | −11 mm |
| Stack | 612mm | 606mm | −6 mm |
| Head tube angle | 74° | 73.5° | −0.5° |
| Seat tube angle | 72.5° | 73° | +0.5° |
| Effective top tube | 600mm | 582mm | −18 mm |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 1013mm | 1008mm | −5 mm |
| BB drop | 67.5mm | 68mm | +1 mm |
| BB height | 274mm | 274mm | ±0 mm |
| Standover | 850mm | 834mm | −16 mm |
| Seat tube length | 553mm | 550mm | −3 mm |
| Fork length | 368mm | 369mm | +1 mm |
| Head tube length | 210mm | 205mm | −5 mm |
Differences are the Specialized Allez E5 minus the Specialized Tarmac Men's Comp Disc. Full charts: 2018 Specialized Tarmac Men's Comp Disc, 2017 Specialized Allez E5.
Where each sits in its class
Specialized Tarmac Men's Comp DiscSpecialized Allez E5
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 Men's Comp DiscMen's Comp Disc | Specialized Allez E5Allez E5 |
|---|---|---|
| Shifter | Shimano Ultegra | Shimano Claris R2400 |
| Derailleur | Shimano Ultegra R8000 | Shimano Claris R2400 |
| Cassette | Shimano 105 | not listed |
| Chain | KMC X11 EL | KMC Z7 |
| Crankset | Shimano Ultegra R8000 | FSA Gossamer Pro |
| Bottom bracket | Shimano Ultegra | not listed |
| Wheelset | DT Swiss R470 | Specialized Axis Sport |
| Tire | Specialized S-Works Turbo | Specialized Espoir Sport |
| Brake | Shimano RS785 | not listed |
| Saddle | Specialized Toupe Comp | Specialized Toupé Sport |
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