2016 Specialized Tarmac Pro Disc Race UDi2 vs 2015 Specialized Allez E5 Smartweld
The 52 is the Specialized Allez E5 Smartweld size closest to your 49.0 Specialized Tarmac Pro Disc Race UDi2. 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 Pro Disc Race UDi2 in 49.0, the Specialized Allez E5 Smartweld in 52 places the top of the head tube 18 mm higher and about as far forward, relative to the bottom bracket.
- Frame stack
- +18 mm
- Higher front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- ±0 mm
- About the same
- Head angle
- +0.8°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Pro Disc Race UDi2, 49.0Specialized Allez E5 Smartweld, 52Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Pro Disc Race UDi2 49.0 | Specialized Allez E5 Smartweld 52 | Difference |
|---|---|---|---|
| Reach | 386 | 385mm | −1 mm |
| Stack | 505 | 523mm | +18 mm |
| Head tube angle | 72.25 | 73° | +0.8° |
| Seat tube angle | 75.5 | 74° | −1.5° |
| Effective top tube | 517 | 537mm | +20 mm |
| Chainstay length | 405 | 405mm | ±0 mm |
| Wheelbase | 970 | 970mm | ±0 mm |
| BB drop | 72 | 71.5mm | −1 mm |
| BB height | 270 | not listed | |
| Standover | 730 | 777mm | +47 mm |
| Seat tube length | 460 | 480mm | +20 mm |
| Fork length | 368 | not listed | |
| Head tube length | 100 | 120mm | +20 mm |
Differences are the Specialized Allez E5 Smartweld minus the Specialized Tarmac Pro Disc Race UDi2. Full charts: 2016 Specialized Tarmac Pro Disc Race UDi2, 2015 Specialized Allez E5 Smartweld.
Where each sits in its class
Specialized Tarmac Pro Disc Race UDi2Specialized 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 Pro Disc Race UDi2Pro Disc Race UDi2 | Specialized Allez E5 Smartweld |
|---|---|---|
| Fork | Specialized FACT carbon | not listed |
| Shifter | Shimano 785 Di2 | not listed |
| Derailleur | Shimano Ultegra Di2 | not listed |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | not listed |
| Crankset | Specialized Pro | not listed |
| Wheelset | Roval CL 40 | not listed |
| Tire | Specialized S-Works Turbo | not listed |
| Brake | Shimano BR-785 | not listed |
| Handlebar | Specialized Expert | not listed |
| Stem | Specialized Pro SL | not listed |
| Bar tape | Specialized Roubaix | not listed |
| Seatpost | S Works FACT carbon | not listed |
| Saddle | Specialized Toupe Expert | not listed |
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