2016 Specialized Roubaix SL4 Sport vs 2018 Specialized Allez Elite
The 52 is the Specialized Allez Elite size closest to your 52.0 Specialized Roubaix SL4 Sport. 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 Sport in 52.0, the Specialized Allez Elite in 52 places the top of the head tube 5 mm higher and 3 mm further back, relative to the bottom bracket. Its wheelbase is 12 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +5 mm
- Higher front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- −12 mm
- Shorter: quicker to change direction
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +3 mm
- Longer: more planted
The two frames
Specialized Roubaix SL4 Sport, 52.0Specialized Allez Elite, 52Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Sport 52.0 | Specialized Allez Elite 52 | Difference |
|---|---|---|---|
| Reach | 379 | 376mm | −3 mm |
| Stack | 547 | 552mm | +5 mm |
| Head tube angle | 72 | 73° | +1.0° |
| Seat tube angle | 74 | 73.25° | −0.8° |
| Effective top tube | 536 | 542mm | +6 mm |
| Chainstay length | 412 | 415mm | +3 mm |
| Wheelbase | 990 | 978mm | −12 mm |
| BB drop | 73 | 77mm | +4 mm |
| BB height | 269.5 | 263mm | −7 mm |
| Standover | 756 | 755mm | −1 mm |
| Seat tube length | 475 | 490mm | +15 mm |
| Fork length | 368 | 375mm | +7 mm |
| Head tube length | 145 | 135mm | −10 mm |
Differences are the Specialized Allez Elite minus the Specialized Roubaix SL4 Sport. Full charts: 2016 Specialized Roubaix SL4 Sport, 2018 Specialized Allez Elite.
Where each sits in its class
Specialized Roubaix SL4 SportSpecialized 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 SportSL4 Sport | Specialized Allez EliteElite |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Fork | Specialized FACT carbon | not listed |
| Shifter | Shimano 105 STI | Shimano 105 |
| Derailleur | Shimano 105 | Shimano 105 Ez, Shimano 105 |
| Cassette | Shimano 105 | Shimano 105 |
| Chain | Shimano 105 | KMC X11 EL |
| Crankset | FSA Gossamer Pro | Praxis Alba 2D |
| Wheelset | Specialized AXIS 2.0 | DT Swiss R460 |
| Tire | Specialized Espoir Elite | Specialized Espoir Sport |
| Brake | Specialized Axis 1.0 | 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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