2016 Specialized Roubaix SL4 Pro Disc Race UDi2 vs 2015 Specialized Secteur Double
The Specialized Secteur Double size closest to your 54.0 is the 54. Compare the 54 instead
What changes on the Specialized Secteur Double
Compared with the Specialized Roubaix SL4 Pro Disc Race UDi2 in 54.0, the Specialized Secteur 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 Pro Disc Race UDi2, 54.0Specialized Secteur Double, 56Drawn 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 Double 56 | Difference |
|---|---|---|---|
| Reach | 380 | 387mm | +7 mm |
| Stack | 564 | 590mm | +26 mm |
| Head tube angle | 72 | 72.5° | +0.5° |
| Seat tube angle | 73.5 | 73.25° | −0.3° |
| Effective top tube | 547 | 565mm | +18 mm |
| Chainstay length | 415 | 415mm | ±0 mm |
| Wheelbase | 1000 | 1010mm | +10 mm |
| BB drop | 71.5 | 71.5mm | ±0 mm |
| BB height | 271 | not listed | |
| Standover | 776 | 798mm | +22 mm |
| Seat tube length | 495 | 485mm | −10 mm |
| Fork length | 368 | not listed | |
| Head tube length | 165 | 190mm | +25 mm |
Differences are the Specialized Secteur Double minus the Specialized Roubaix SL4 Pro Disc Race UDi2. Full charts: 2016 Specialized Roubaix SL4 Pro Disc Race UDi2, 2015 Specialized Secteur Double.
Where each sits in its class
Specialized Roubaix SL4 Pro Disc Race UDi2Specialized Secteur 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 DoubleDouble |
|---|---|---|
| Frame | Specialized SL4 FACT | Specialized A1 Premium Aluminum |
| Fork | Specialized FACT carbon | Specialized FACT |
| Shifter | Shimano 785 Di2 | Shimano Claris R2400 |
| Derailleur | Shimano Ultegra Di2 | Shimano Claris R2400 |
| Cassette | Shimano Ultegra | SunRace CS-8SP |
| Chain | Shimano Ultegra | KMC Z51 |
| Crankset | Specialized Pro | Shimano Claris |
| Wheelset | Roval Rapide CL 40 | Specialized AXIS Classic |
| Tire | Specialized S-Works Turbo | Specialized Espoir Sport |
| Brake | Shimano BR-785 | Tektro caliper |
| Handlebar | Specialized Expert | not listed |
| Stem | Specialized Pro SL | Specialized 3D-forged |
| Bar tape | Specialized CX Pro | Specialized Roubaix |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Phenom Pro | Specialized Toupé Sport |
| Chainring | not listed | Shimano 50/34 |
| Pedals | not listed | Specialized nylon flat |
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