Quiver

2017 Specialized Roubaix Expert vs 2018 Cannondale Synapse Hi-MOD Disc

The Cannondale Synapse Hi-MOD Disc size closest to your 54 is the 56. Compare the 56 instead

What changes on the Cannondale Synapse Hi-MOD Disc

Compared with the Specialized Roubaix Expert in 54, the Cannondale Synapse Hi-MOD Disc in 51 places the top of the head tube 35 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.

Frame stack
−35 mm
Lower front end
Frame reach
+2 mm
About the same reach
Wheelbase
+7 mm
Longer: steadier at speed
Head angle
−1.0°
Slacker: calmer steering
Chainstays
n/a
One of the bikes has no number for this

The two frames

2017 Specialized Roubaix Expert (54)The Specialized Roubaix Expert frame drawn to scale.J 987

Only the Specialized Roubaix Expert is drawn. The Cannondale Synapse Hi-MOD Disc numbers we have for size 51 are missing the chainstay length.

Geometry side by side

MeasurementSpecialized Roubaix Expert 54Cannondale Synapse Hi-MOD Disc 51Difference
Reach375377+2 mm
Stack585550−35 mm
Head tube angle72.7571.7−1.0°
Seat tube angle7474.3+0.3°
Effective top tube545mm531−14 mm
Chainstay length415mmnot listed
Wheelbase987994+7 mm
BB drop76mmnot listed
Standover762742−20 mm
Seat tube length481443−38 mm
Head tube length125mm137+12 mm
BB heightnot listednot listed

Differences are the Cannondale Synapse Hi-MOD Disc minus the Specialized Roubaix Expert. Full charts: 2017 Specialized Roubaix Expert, 2018 Cannondale Synapse Hi-MOD Disc.

Where each sits in its class

Specialized Roubaix ExpertCannondale Synapse Hi-MOD Disc

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 ExpertExpertCannondale Synapse Hi-MOD DiscHi-MOD Disc Dura-Ace
FrameSpecialized FACT 10RCannondale Synapse
ForkSpecialized RoubaixSynapse
ShifterShimano ST-RS685Shimano Dura-Ace R9120 hydro
DerailleurShimano UltegraShimano Dura-Ace R9100
CassetteShimano UltegraShimano Ultegra R6800
ChainShimano UltegraShimano HG701
CranksetShimano UltegraCannondale HollowGram Si
ChainringShimano Ultegranot listed
WheelsetDT Swiss R470Cannondale HollowGram
TireSpecialized Turbo Pronot listed
RimDT Swiss R460not listed
BrakeShimano RS805Shimano Dura-Ace R9170, Shimano Dura-Ace R9120 hydro
HandlebarSpecialized Hover ExpertCannondale C1 Ultralight
StemSpecialized Pro SLCannondale SAVE
Bar tapeSpecialized S-Wrap Roubaixnot listed
SeatpostSpecialized CG-RCannondale SAVE
SaddleSpecialized Phenom Expert GTFabric Scoop
Headsetnot listedSynapse Si

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