2010 Specialized Tarmac Pro SL Compact Dura Ace vs 2012 Specialized Allez Compact
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Allez Compact
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- −30 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- −2 mm
- About the same
The two frames
We can't draw these frames yet. The Specialized Tarmac Pro SL Compact Dura Ace numbers we have for size 58 are missing the reach and stack. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Tarmac Pro SL Compact Dura Ace 58 | Specialized Allez Compact 54 | Difference |
|---|---|---|---|
| Head tube angle | 73.5° | 73° | −0.5° |
| Seat tube angle | 73° | 73.5° | +0.5° |
| Chainstay length | 407mm | 405mm | −2 mm |
| Wheelbase | 1008mm | 978mm | −30 mm |
| Standover | 828mm | 798mm | −30 mm |
| Seat tube length | 550mm | 510mm | −40 mm |
| Head tube length | 205mm | 145mm | −60 mm |
| Reach | not listed | 385mm | |
| Stack | not listed | 548mm |
Differences are the Specialized Allez Compact minus the Specialized Tarmac Pro SL Compact Dura Ace. Full charts: 2010 Specialized Tarmac Pro SL Compact Dura Ace, 2012 Specialized Allez Compact.
Where each sits in its class
Specialized Tarmac Pro SL Compact Dura AceSpecialized Allez Compact
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 Pro SL Compact Dura AcePro SL Compact Dura Ace | Specialized Allez CompactCompact |
|---|---|---|
| Frame | Specialized Tarmac SL FACT | not listed |
| Shifter | Shimano Dura-Ace | Shimano 2300 |
| Derailleur | Shimano Ultegra, Shimano Dura-Ace | Shimano 2300 |
| Cassette | Shimano Ultegra | Shimano HG50 |
| Chain | Shimano Ultegra | KMC Z51 |
| Wheelset | Mavic Kysrium Elite | not listed |
| Tire | Specialized SW Mondo | Specialized Espoir Sport |
| Brake | Shimano Ultegra, Shimano Dura-Ace | not listed |
| Stem | Specialized Pro-Set | not listed |
| Saddle | Specialized Toupe | Specialized Riva |
| Crankset | not listed | Shimano 2300 |
| Rim | not listed | Alex Rims S480 |
| Handlebar | not listed | Specialized Tarmac |
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