Quiver

2021 Specialized Roubaix Sport vs 2021 Specialized Tarmac SL7 Pro

We can't match sizes for these two: one of them has no stack and reach for the sizes shown.

What changes on the Specialized Tarmac SL7 Pro

Frame stack
n/a
One of the bikes has no number for this
Frame reach
n/a
One of the bikes has no number for this
Wheelbase
−13 mm
Shorter: quicker to change direction
Head angle
−0.3°
About the same head angle
Chainstays
−5 mm
Shorter: livelier

The two frames

2021 Specialized Roubaix Sport (54)The Specialized Roubaix Sport frame drawn to scale.J 988

Only the Specialized Roubaix Sport is drawn. The Specialized Tarmac SL7 Pro numbers we have for size 52 are missing the reach and stack.

Geometry side by side

MeasurementSpecialized Roubaix Sport 54Specialized Tarmac SL7 Pro 52Difference
Reach376not listed
Stack585not listed
Head tube angle72.7572.5−0.3°
Seat tube angle74°74±0.0°
Chainstay length415410−5 mm
Wheelbase988mm975−13 mm
BB drop76mm74−2 mm
BB height266mm266±0 mm
Standover762mmnot listed
Seat tube length465mmnot listed
Fork length370mmnot listed
Head tube length125mmnot listed

Differences are the Specialized Tarmac SL7 Pro minus the Specialized Roubaix Sport. Full charts: 2021 Specialized Roubaix Sport, 2021 Specialized Tarmac SL7 Pro.

Where each sits in its class

Specialized Roubaix SportSpecialized Tarmac SL7 Pro

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 SportSportSpecialized Tarmac SL7 Pro
FrameSpecialized Roubaixnot listed
ForkSpecialized Future Shock 1.5not listed
ShifterShimano 105 R7020not listed
DerailleurShimano 105 R7000, Shimano 105 R7000 GSnot listed
CassetteShimano 105not listed
ChainKMC X11 Extranot listed
CranksetPraxis Albanot listed
WheelsetDT Swiss R470not listed
TireSpecialized Turbo Pronot listed
BrakeShimano 105not listed
HandlebarSpecialized Hovernot listed
StemSpecialized Futurenot listed
SeatpostSpecialized S-Works Pavenot listed
SaddleSpecialized Power Sportnot 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