Quiver

2025 Pinarello X5 Shimano vs 2023 Specialized Roubaix SL8 Comp

The 52 is the Specialized Roubaix SL8 Comp size closest to your 510 Pinarello X5 Shimano. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.

What changes on the Specialized Roubaix SL8 Comp

Compared with the Pinarello X5 Shimano in 510, the Specialized Roubaix SL8 Comp in 52 places the top of the head tube 6 mm lower and about as far forward, relative to the bottom bracket.

Frame stack
−6 mm
Lower front end
Frame reach
−3 mm
About the same reach
Wheelbase
n/a
One of the bikes has no number for this
Head angle
−0.5°
Slacker: calmer steering
Chainstays
−4 mm
Shorter: livelier

The two frames

We can't draw these frames yet. The Pinarello X5 Shimano numbers we have for size 510 are missing the wheelbase. The numbers below still compare.

Geometry side by side

MeasurementPinarello X5 Shimano 510Specialized Roubaix SL8 Comp 52Difference
Reach372.5370−3 mm
Stack575.8570−6 mm
Head tube angle7271.5−0.5°
Seat tube angle73.574+0.5°
Effective top tube545534−11 mm
Chainstay length422418−4 mm
BB drop72not listed
Seat tube length510446−64 mm
Fork length375not listed
Head tube length159105−54 mm
Wheelbasenot listed998
BB heightnot listed269
Standovernot listed747

Differences are the Specialized Roubaix SL8 Comp minus the Pinarello X5 Shimano. Full charts: 2025 Pinarello X5 Shimano, 2023 Specialized Roubaix SL8 Comp.

Where each sits in its class

Pinarello X5 ShimanoSpecialized Roubaix SL8 Comp

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.

PartPinarello X5 ShimanoShimano 105 Di2Specialized Roubaix SL8 CompSL8 Comp
FramePinarello X5Specialized FACT 10R
ShifterShimano 105 Di2Shimano 105
DerailleurShimano 105 Di2Shimano 105
CassetteShimano 105Shimano 105
ChainShimano 105Shimano 105
CranksetShimano 105 Di2Shimano 105
Bottom bracketShimano 105Shimano 105
WheelsetFulcrum Racing 800 DBDT Swiss G540
TirePirelli P7 SportS Works Mondo, S Works Mondo 2BR
BrakeShimano 105Shimano 105
RotorShimano 105Shimano 105
HandlebarMOST Jaguar XA TiCRSpecialized Hover
StemTiger Aero Alu TiCRSpecialized Future Stem
Bar tapeMOST Ultragrip EvoSupacaz Super Sticky Kush
Forknot listedSpecialized Future Shock 3.2
Chainringnot listedShimano 105
Seatpostnot listedSpecialized S-Works Pavé
Saddlenot listedSpecialized Body Geometry Power Sport

Know what is on every bike.

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

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