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2015 Specialized Roubaix SL4 Sport vs 2015 Specialized Secteur Double

The Specialized Secteur Double size closest to your 54 is the 54. Compare the 54 instead

What changes on the Specialized Secteur Double

Compared with the Specialized Roubaix SL4 Sport in 54, the Specialized Secteur Double in 52 places the top of the head tube 16 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
−16 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

2015 Specialized Roubaix SL4 Sport (54) and 2015 Specialized Secteur Double (52), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Roubaix SL4 Sport is drawn in full with its measurements, and the Specialized Secteur Double is the colored outline on top.J 1000

Specialized Roubaix SL4 Sport, 54Specialized Secteur Double, 52Drawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Roubaix SL4 Sport 54Specialized Secteur Double 52Difference
Reach380mm378mm−2 mm
Stack563mm547mm−16 mm
Head tube angle72°72°±0.0°
Seat tube angle73.5°74°+0.5°
Effective top tube548mm537mm−11 mm
Chainstay length415mm412mm−3 mm
Wheelbase1000mm989mm−11 mm
BB drop71.5mm73mm+2 mm
Standover776mm756mm−20 mm
Seat tube length495mm447mm−48 mm
Head tube length165mm145mm−20 mm

Differences are the Specialized Secteur Double minus the Specialized Roubaix SL4 Sport. Full charts: 2015 Specialized Roubaix SL4 Sport, 2015 Specialized Secteur Double.

Where each sits in its class

Specialized Roubaix SL4 SportSpecialized Secteur Double

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

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.

PartSpecialized Roubaix SL4 SportSL4 SportSpecialized Secteur DoubleDouble
FrameSpecialized SL4 FACTSpecialized A1 Premium Aluminum
ShifterShimano 105Shimano Claris R2400
DerailleurShimano 105Shimano Claris R2400
CassetteShimano 105SunRace CS-8SP
ChainShimano 105KMC Z51
CranksetFSA GossamerShimano Claris
WheelsetSpecialized AXIS 2.0Specialized AXIS Classic
TireSpecialized Espoir EliteSpecialized Espoir Sport
BrakeSpecialized Axis 1.0Tektro caliper
SeatpostSpecialized CG-Rnot listed
SaddleSpecialized Toupe CompSpecialized Toupé Sport
Forknot listedSpecialized FACT
Chainringnot listedShimano 50/34
Pedalsnot listedSpecialized nylon flat
Stemnot listedSpecialized 3D-forged
Bar tapenot listedSpecialized Roubaix

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