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2015 Specialized Roubaix SL4 Pro Disc Race UDi2 vs 2015 Trek Domane

The Trek Domane size closest to your 56 is the 56. Compare the 56 instead

What changes on the Trek Domane

Frame stack
−14 mm
Lower front end
Frame reach
n/a
One of the bikes has no number for this
Wheelbase
±0 mm
About the same
Head angle
−1.2°
Slacker: calmer steering
Chainstays
+5 mm
Longer: more planted

The two frames

2015 Specialized Roubaix SL4 Pro Disc Race UDi2 (56)The Specialized Roubaix SL4 Pro Disc Race UDi2 frame drawn to scale.J 1010

Only the Specialized Roubaix SL4 Pro Disc Race UDi2 is drawn. The Trek Domane numbers we have for size 54 are missing the reach.

Geometry side by side

MeasurementSpecialized Roubaix SL4 Pro Disc Race UDi2 56Trek Domane 54Difference
Reach387mmnot listed
Stack589mm575−14 mm
Head tube angle72.5°71.3−1.2°
Seat tube angle73.25°73.7+0.5°
Effective top tube565mm542−23 mm
Chainstay length415mm420+5 mm
Wheelbase1010mm1010±0 mm
BB drop71.5mm80+9 mm
Standover798mm754−44 mm
Seat tube length515mm500−15 mm
Head tube length190mm160−30 mm

Differences are the Trek Domane minus the Specialized Roubaix SL4 Pro Disc Race UDi2. Full charts: 2015 Specialized Roubaix SL4 Pro Disc Race UDi2, 2015 Trek Domane.

Where each sits in its class

Specialized Roubaix SL4 Pro Disc Race UDi2Trek Domane

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 Pro Disc Race UDi2SL4 Pro Disc Race UDi2Trek Domane
FrameSpecialized SL4 FACTnot listed
ShifterShimano 785 Di2not listed
DerailleurShimano Ultegra Di2not listed
CassetteShimano Ultegranot listed
ChainShimano Ultegranot listed
WheelsetRoval Rapide CL 40 SCSnot listed
TireSpecialized Turbo Pronot listed
BrakeShimano 785not listed
SeatpostSpecialized CG-Rnot listed
SaddleSpecialized Toupe Expertnot listed

Know what is on every bike.

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