2016 Specialized Roubaix SL4 Comp vs 2018 Specialized Allez Elite
The 58 is the Specialized Allez Elite size closest to your 58.0 Specialized Roubaix SL4 Comp. 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 Elite
Compared with the Specialized Roubaix SL4 Comp in 58.0, the Specialized Allez Elite in 58 places the top of the head tube 5 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 18 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +5 mm
- Higher front end
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- −18 mm
- Shorter: quicker to change direction
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Specialized Roubaix SL4 Comp, 58.0Specialized Allez Elite, 58Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Comp 58.0 | Specialized Allez Elite 58 | Difference |
|---|---|---|---|
| Reach | 392 | 390mm | −2 mm |
| Stack | 622 | 627mm | +5 mm |
| Head tube angle | 72.5 | 73.5° | +1.0° |
| Seat tube angle | 73 | 73.25° | +0.3° |
| Effective top tube | 582 | 579mm | −3 mm |
| Chainstay length | 418 | 415mm | −3 mm |
| Wheelbase | 1029 | 1011mm | −18 mm |
| BB drop | 70 | 74.5mm | +5 mm |
| BB height | 272.5 | 265.5mm | −7 mm |
| Standover | 829 | 826mm | −3 mm |
| Seat tube length | 540 | 550mm | +10 mm |
| Fork length | 368 | 375mm | +7 mm |
| Head tube length | 225 | 215mm | −10 mm |
Differences are the Specialized Allez Elite minus the Specialized Roubaix SL4 Comp. Full charts: 2016 Specialized Roubaix SL4 Comp, 2018 Specialized Allez Elite.
Where each sits in its class
Specialized Roubaix SL4 CompSpecialized 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 CompSL4 Comp | Specialized Allez EliteElite |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Fork | Specialized FACT carbon | not listed |
| Shifter | Shimano Ultegra | Shimano 105 |
| Derailleur | Shimano Ultegra | Shimano 105 Ez, Shimano 105 |
| Cassette | Shimano 105 | Shimano 105 |
| Chain | Shimano 105 | KMC X11 EL |
| Crankset | Praxis TURN Zayante | Praxis Alba 2D |
| Wheelset | Fulcrum S-19 | DT Swiss R460 |
| Tire | Specialized Turbo Pro | Specialized Espoir Sport |
| Brake | Shimano 105 | Tektro Axis |
| Handlebar | Specialized Comp | not listed |
| Stem | Specialized Comp Multi | not listed |
| Bar tape | Specialized Roubaix | not listed |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Phenom | Specialized Toupé Sport |
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