Quiver

2019 Specialized Roubaix Expert vs 2018 Trek Domane

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

What changes on the Trek Domane

Compared with the Specialized Roubaix Expert in 56, the Trek Domane in 54 places the top of the head tube 36 mm lower and 7 mm further back, relative to the bottom bracket. Its wheelbase is 17 mm longer, which can contribute to stability at speed.

Frame stack
−36 mm
Lower front end
Frame reach
−7 mm
Shorter frame reach
Wheelbase
+17 mm
Longer: steadier at speed
Head angle
−2.2°
Slacker: calmer steering
Chainstays
+5 mm
Longer: more planted

The two frames

2019 Specialized Roubaix Expert (56) and 2018 Trek Domane (54), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Roubaix Expert is drawn in full with its measurements, and the Trek Domane is the colored outline on top.J 993

Specialized Roubaix Expert, 56Trek Domane, 54Drawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Roubaix Expert 56Trek Domane 54Difference
Reach381mm374−7 mm
Stack611mm575−36 mm
Head tube angle73.5°71.3−2.2°
Seat tube angle73.5°73.7+0.2°
Effective top tube561.8mm542−20 mm
Chainstay length415mm420+5 mm
Wheelbase993mm1010+17 mm
BB drop76mm80+4 mm
Standover785mm754−31 mm
Seat tube length501mm500−1 mm
Head tube length150mm160+10 mm

Differences are the Trek Domane minus the Specialized Roubaix Expert. Full charts: 2019 Specialized Roubaix Expert, 2018 Trek Domane.

Where each sits in its class

Specialized Roubaix ExpertTrek 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 ExpertExpertTrek Domane
ShifterShimano Ultegra Di2not listed
DerailleurShimano Ultegra R8050 Di2not listed
CassetteShimano Ultegranot listed
ChainShimano Ultegranot listed
CranksetShimano Ultegra R8000not listed
Bottom bracketShimano Ultegranot listed
WheelsetRoval C38not listed
TireSpecialized Turbo Pronot listed
BrakeShimano Ultegranot listed
HandlebarSpecialized Expert Hovernot listed
SeatpostSpecialized S-Works CG-Rnot listed
SaddleSpecialized Phenom Expertnot listed

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet