2014 Specialized Roubaix SL4 Expert vs 2015 Specialized Secteur Double
The Specialized Secteur Double size closest to your 540.0 is the 54. Compare the 54 instead
What changes on the Specialized Secteur Double
Compared with the Specialized Roubaix SL4 Expert in 540.0, the Specialized Secteur Double in 52 places the top of the head tube 17 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 11 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −17 mm
- Lower front end
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- −11 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 Expert, 540.0Specialized Secteur Double, 52Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Expert 540.0 | Specialized Secteur Double 52 | Difference |
|---|---|---|---|
| Reach | 380mm | 378mm | −2 mm |
| Stack | 564mm | 547mm | −17 mm |
| Head tube angle | 72° | 72° | ±0.0° |
| Seat tube angle | 73.5° | 74° | +0.5° |
| Chainstay length | 415mm | 412mm | −3 mm |
| Wheelbase | 1000mm | 989mm | −11 mm |
| Standover | 776mm | 756mm | −20 mm |
| Seat tube length | 495mm | 447mm | −48 mm |
| Head tube length | 165mm | 145mm | −20 mm |
| Effective top tube | not listed | 537mm | |
| BB drop | not listed | 73mm |
Differences are the Specialized Secteur Double minus the Specialized Roubaix SL4 Expert. Full charts: 2014 Specialized Roubaix SL4 Expert, 2015 Specialized Secteur Double.
Where each sits in its class
Specialized Roubaix SL4 ExpertSpecialized 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 ExpertSL4 Expert | Specialized Secteur DoubleDouble |
|---|---|---|
| Frame | Specialized SL4 FACT | Specialized A1 Premium Aluminum |
| Fork | Specialized Roubaix FACT | Specialized FACT |
| Shifter | Shimano Ultegra | Shimano Claris R2400 |
| Derailleur | Shimano Ultegra | Shimano Claris R2400 |
| Cassette | Shimano Ultegra | SunRace CS-8SP |
| Chain | Shimano Ultegra | KMC Z51 |
| Crankset | FSA SL-K | Shimano Claris |
| Wheelset | Fulcrum S4 | Specialized AXIS Classic |
| Tire | Specialized Roubaix Pro | Specialized Espoir Sport |
| Brake | Shimano Ultegra | Tektro caliper |
| Stem | Specialized Expert Pro-Set | Specialized 3D-forged |
| Seatpost | Specialized S-Works CG-R | not listed |
| Saddle | Specialized Romin Expert | Specialized Toupé Sport |
| Chainring | not listed | Shimano 50/34 |
| Pedals | not listed | Specialized nylon flat |
| Bar tape | not listed | Specialized Roubaix |
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