2016 Specialized Roubaix SL4 Pro Disc Race UDi2 vs 2018 Specialized Allez Elite
The Specialized Allez Elite size closest to your 54.0 is the 54. Compare the 54 instead
What changes on the Specialized Allez Elite
Compared with the Specialized Roubaix SL4 Pro Disc Race UDi2 in 54.0, the Specialized Allez Elite in 61 places the top of the head tube 85 mm higher and 16 mm further forward, relative to the bottom bracket. Its wheelbase is 18 mm longer, which can contribute to stability at speed.
- Frame stack
- +85 mm
- Higher front end
- Frame reach
- +16 mm
- Longer frame reach
- Wheelbase
- +18 mm
- Longer: steadier at speed
- Head angle
- +2.0°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Roubaix SL4 Pro Disc Race UDi2, 54.0Specialized Allez Elite, 61Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Pro Disc Race UDi2 54.0 | Specialized Allez Elite 61 | Difference |
|---|---|---|---|
| Reach | 380 | 396mm | +16 mm |
| Stack | 564 | 649mm | +85 mm |
| Head tube angle | 72 | 74° | +2.0° |
| Seat tube angle | 73.5 | 73.25° | −0.3° |
| Effective top tube | 547 | 591mm | +44 mm |
| Chainstay length | 415 | 415mm | ±0 mm |
| Wheelbase | 1000 | 1018mm | +18 mm |
| BB drop | 71.5 | 74.5mm | +3 mm |
| BB height | 271 | 265.5mm | −6 mm |
| Standover | 776 | 850mm | +74 mm |
| Seat tube length | 495 | 580mm | +85 mm |
| Fork length | 368 | 375mm | +7 mm |
| Head tube length | 165 | 235mm | +70 mm |
Differences are the Specialized Allez Elite minus the Specialized Roubaix SL4 Pro Disc Race UDi2. Full charts: 2016 Specialized Roubaix SL4 Pro Disc Race UDi2, 2018 Specialized Allez Elite.
Where each sits in its class
Specialized Roubaix SL4 Pro Disc Race UDi2Specialized Allez Elite
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 Roubaix SL4 Pro Disc Race UDi2SL4 Pro Disc Race UDi2 | Specialized Allez EliteElite |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Fork | Specialized FACT carbon | not listed |
| Shifter | Shimano 785 Di2 | Shimano 105 |
| Derailleur | Shimano Ultegra Di2 | Shimano 105 Ez, Shimano 105 |
| Cassette | Shimano Ultegra | Shimano 105 |
| Chain | Shimano Ultegra | KMC X11 EL |
| Crankset | Specialized Pro | Praxis Alba 2D |
| Wheelset | Roval Rapide CL 40 | DT Swiss R460 |
| Tire | Specialized S-Works Turbo | Specialized Espoir Sport |
| Brake | Shimano BR-785 | Tektro Axis |
| Handlebar | Specialized Expert | not listed |
| Stem | Specialized Pro SL | not listed |
| Bar tape | Specialized CX Pro | not listed |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Phenom Pro | Specialized Toupé Sport |
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