2016 Specialized Roubaix SL4 Pro Disc Race UDi2 vs 2015 Specialized Secteur Sport Double
The Specialized Secteur Sport Double size closest to your 54.0 is the 54. Compare the 54 instead
What changes on the Specialized Secteur Sport Double
Compared with the Specialized Roubaix SL4 Pro Disc Race UDi2 in 54.0, the Specialized Secteur Sport Double in 49 places the top of the head tube 36 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 17 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −36 mm
- Lower front end
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- −17 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Specialized Roubaix SL4 Pro Disc Race UDi2, 54.0Specialized Secteur Sport Double, 49Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Pro Disc Race UDi2 54.0 | Specialized Secteur Sport Double 49 | Difference |
|---|---|---|---|
| Reach | 380 | 378mm | −2 mm |
| Stack | 564 | 528mm | −36 mm |
| Head tube angle | 72 | 72° | ±0.0° |
| Seat tube angle | 73.5 | 75.5° | +2.0° |
| Effective top tube | 547 | 518mm | −29 mm |
| Chainstay length | 415 | 412mm | −3 mm |
| Wheelbase | 1000 | 983mm | −17 mm |
| BB drop | 71.5 | 73mm | +2 mm |
| BB height | 271 | not listed | |
| Standover | 776 | 730mm | −46 mm |
| Seat tube length | 495 | 418mm | −77 mm |
| Fork length | 368 | not listed | |
| Head tube length | 165 | 125mm | −40 mm |
Differences are the Specialized Secteur Sport Double minus the Specialized Roubaix SL4 Pro Disc Race UDi2. Full charts: 2016 Specialized Roubaix SL4 Pro Disc Race UDi2, 2015 Specialized Secteur Sport Double.
Where each sits in its class
Specialized Roubaix SL4 Pro Disc Race UDi2Specialized 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 Pro Disc Race UDi2SL4 Pro Disc Race UDi2 | Specialized Secteur Sport DoubleSport Double |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Fork | Specialized FACT carbon | not listed |
| Shifter | Shimano 785 Di2 | Shimano Sora |
| Derailleur | Shimano Ultegra Di2 | Shimano Sora |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | KMC X9 |
| Crankset | Specialized Pro | Shimano Sora |
| Wheelset | Roval Rapide CL 40 | Specialized AXIS Classic |
| Tire | Specialized S-Works Turbo | Specialized Espoir Sport |
| Brake | Shimano BR-785 | Specialized Axis 1.0 |
| 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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