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2021 Trek Domane SL Gen 3 Frameset vs 2023 Specialized Roubaix SL8 Comp

The Specialized Roubaix SL8 Comp size closest to your 54 is the 52. Compare the 52 instead

What changes on the Specialized Roubaix SL8 Comp

Compared with the Trek Domane SL Gen 3 Frameset in 54, the Specialized Roubaix SL8 Comp in 44 places the top of the head tube 35 mm lower and 21 mm further back, relative to the bottom bracket. Its wheelbase is 16 mm shorter, which can contribute to quicker direction changes.

Frame stack
−35 mm
Lower front end
Frame reach
−21 mm
Shorter frame reach
Wheelbase
−16 mm
Shorter: quicker to change direction
Head angle
−2.0°
Slacker: calmer steering
Chainstays
−2 mm
About the same

The two frames

We can't draw these frames yet. The Trek Domane SL Gen 3 Frameset numbers we have for size 54 are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek Domane SL Gen 3 Frameset 54Specialized Roubaix SL8 Comp 44Difference
Reach374353−21 mm
Stack575540−35 mm
Head tube angle71.3°69.3−2.0°
Effective top tube542503−39 mm
Chainstay length420418−2 mm
Wheelbase1010994−16 mm
BB drop80not listed
Standover754686−68 mm
Seat tube length500365−135 mm
Head tube length16090−70 mm
Seat tube anglenot listed75
BB heightnot listed269

Differences are the Specialized Roubaix SL8 Comp minus the Trek Domane SL Gen 3 Frameset. Full charts: 2021 Trek Domane SL Gen 3 Frameset, 2023 Specialized Roubaix SL8 Comp.

Where each sits in its class

Trek Domane SL Gen 3 FramesetSpecialized 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.

PartTrek Domane SL Gen 3 FramesetSL Gen 3 FramesetSpecialized Roubaix SL8 CompSL8 Comp
FrameTrek OCLVSpecialized FACT 10R
ForkTrek Domane SLSpecialized Future Shock 3.2
DerailleurTrek derailleurs must haveShimano 105
Shifternot listedShimano 105
Cassettenot listedShimano 105
Chainnot listedShimano 105
Cranksetnot listedShimano 105
Chainringnot listedShimano 105
Bottom bracketnot listedShimano 105
Wheelsetnot listedDT Swiss G540
Tirenot listedS Works Mondo, S Works Mondo 2BR
Brakenot listedShimano 105
Rotornot listedShimano 105
Handlebarnot listedSpecialized Hover
Stemnot listedSpecialized Future Stem
Bar tapenot listedSupacaz Super Sticky Kush
Seatpostnot listedSpecialized S-Works Pavé
Saddlenot listedSpecialized Body Geometry Power Sport

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