Quiver

2027 Specialized Roubaix SL8 Comp SRAM vs 2025 Trek Domane SL Gen 2 Rim

The 58 is the Trek Domane SL Gen 2 Rim size closest to your 56 Specialized Roubaix SL8 Comp SRAM. 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 Trek Domane SL Gen 2 Rim

Compared with the Specialized Roubaix SL8 Comp SRAM in 56, the Trek Domane SL Gen 2 Rim in 58 places the top of the head tube 6 mm higher and 9 mm further back, relative to the bottom bracket. Its wheelbase is 10 mm longer, which can contribute to stability at speed.

Frame stack
+6 mm
Higher front end
Frame reach
−9 mm
Shorter frame reach
Wheelbase
+10 mm
Longer: steadier at speed
Head angle
−1.0°
Slacker: calmer steering
Chainstays
+5 mm
Longer: more planted

The two frames

2027 Specialized Roubaix SL8 Comp SRAM (56)The Specialized Roubaix SL8 Comp SRAM frame drawn to scale.J 1012

Only the Specialized Roubaix SL8 Comp SRAM is drawn. The Trek Domane SL Gen 2 Rim numbers we have for size 58 are missing the seat angle.

Geometry side by side

MeasurementSpecialized Roubaix SL8 Comp SRAM 56Trek Domane SL Gen 2 Rim 58Difference
Reach389mm380−9 mm
Stack605mm611+6 mm
Head tube angle73°72.0°−1.0°
Seat tube angle73.5°not listed
Effective top tube569mm567−2 mm
Chainstay length420mm425+5 mm
Wheelbase1012mm1022+10 mm
BB drop78mm78±0 mm
BB height270mmnot listed
Standover787mm796+9 mm
Seat tube length485mm548+63 mm
Fork length375mmnot listed
Head tube length140mm195+55 mm

Differences are the Trek Domane SL Gen 2 Rim minus the Specialized Roubaix SL8 Comp SRAM. Full charts: 2027 Specialized Roubaix SL8 Comp SRAM, 2025 Trek Domane SL Gen 2 Rim.

Where each sits in its class

Specialized Roubaix SL8 Comp SRAMTrek Domane SL Gen 2 Rim

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 SL8 Comp SRAMSL8 Comp - SRAM Rival AXSTrek Domane SL Gen 2 Rim
ForkSpecialized Future Shock 3.2not listed
ShifterSRAM Rival AXS E1not listed
DerailleurSRAM Rival AXS E1not listed
CassetteSRAM Rival XG-1250 D1not listed
ChainSRAM Rival Flattop E1not listed
CranksetSRAM Rival E1not listed
Bottom bracketSRAM DUBnot listed
WheelsetDT Swiss G500not listed
TireSpecialized Mondonot listed
BrakeSRAM Rival E1not listed
HandlebarSpecialized Hovernot listed
StemSpecialized Futurenot listed
SeatpostSpecialized S-Works Pavenot listed
SaddleSpecialized Power Compnot listed

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