2017 Specialized Roubaix SL4 Sport vs 2015 Specialized Secteur Sport Double
The Specialized Secteur Sport Double size closest to your 54 is the 54. Compare the 54 instead
What changes on the Specialized Secteur Sport Double
Compared with the Specialized Roubaix SL4 Sport in 54, the Specialized Secteur Sport Double in 56 places the top of the head tube 26 mm higher and 7 mm further forward, relative to the bottom bracket. Its wheelbase is 10 mm longer, which can contribute to stability at speed.
- Frame stack
- +26 mm
- Higher front end
- Frame reach
- +7 mm
- Longer frame reach
- Wheelbase
- +10 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Roubaix SL4 Sport, 54Specialized Secteur Sport Double, 56Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Sport 54 | Specialized Secteur Sport Double 56 | Difference |
|---|---|---|---|
| Reach | 380mm | 387mm | +7 mm |
| Stack | 564mm | 590mm | +26 mm |
| Head tube angle | 72° | 72.5° | +0.5° |
| Seat tube angle | 73.5° | 73.25° | −0.3° |
| Effective top tube | 547mm | 565mm | +18 mm |
| Chainstay length | 415mm | 415mm | ±0 mm |
| Wheelbase | 1000mm | 1010mm | +10 mm |
| BB drop | 71.5mm | 71.5mm | ±0 mm |
| BB height | 271mm | not listed | |
| Standover | 776mm | 798mm | +22 mm |
| Seat tube length | 495mm | 485mm | −10 mm |
| Fork length | 368mm | not listed | |
| Head tube length | 165mm | 190mm | +25 mm |
Differences are the Specialized Secteur Sport Double minus the Specialized Roubaix SL4 Sport. Full charts: 2017 Specialized Roubaix SL4 Sport, 2015 Specialized Secteur Sport Double.
Where each sits in its class
Specialized Roubaix SL4 SportSpecialized Secteur Sport Double
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 Secteur Sport DoubleSport Double |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Shifter | Shimano 105 | Shimano Sora |
| Derailleur | Shimano 105 | Shimano Sora |
| Cassette | Shimano 105 | not listed |
| Chain | KMC X-11 | KMC X9 |
| Crankset | Praxis Alba | Shimano Sora |
| Wheelset | Specialized AXIS Elite | Specialized AXIS Classic |
| Tire | Specialized Turbo Pro | Specialized Espoir Sport |
| Brake | Specialized Axis 1.0 | Specialized Axis 1.0 |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Phenom Comp GT | Specialized Toupé Sport |
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