Quiver

2026 Specialized Roubaix SL8 Comp vs 2026 BMC Roadmachine 01 ONE

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

What changes on the BMC Roadmachine 01 ONE

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
n/a
One of the bikes has no number for this
Head angle
−0.8°
Slacker: calmer steering
Chainstays
n/a
One of the bikes has no number for this

The two frames

2026 Specialized Roubaix SL8 Comp (58)The Specialized Roubaix SL8 Comp frame drawn to scale.J 1031

Only the Specialized Roubaix SL8 Comp is drawn. The BMC Roadmachine 01 ONE numbers we have for size 54 are missing the reach, stack, chainstay length and wheelbase.

Geometry side by side

MeasurementSpecialized Roubaix SL8 Comp 58BMC Roadmachine 01 ONE 54Difference
Reach397not listed
Stack630not listed
Head tube angle7372.2−0.8°
Seat tube angle73.574.2+0.7°
Effective top tube584not listed
Chainstay length423not listed
Wheelbase1031not listed
BB drop7876−2 mm
BB height271not listed
Standover809not listed
Seat tube length505not listed
Fork length375not listed
Head tube length168not listed

Differences are the BMC Roadmachine 01 ONE minus the Specialized Roubaix SL8 Comp. Full charts: 2026 Specialized Roubaix SL8 Comp, 2026 BMC Roadmachine 01 ONE.

Where each sits in its class

Specialized Roubaix SL8 CompBMC Roadmachine 01 ONE

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 CompSL8 CompBMC Roadmachine 01 ONEONE
FrameSpecialized FACT 10rBMC Roadmachine 01
ForkSpecialized Future Shock 3.2not listed
ShifterShimano 105 R7170 Di2Shimano Dura-Ace Di2
DerailleurShimano 105 R7150 Di2, Shimano 105 Di2Shimano Dura-Ace Di2
CassetteShimano 105 R7100Shimano Dura-Ace
ChainShimano SLX M7100Shimano XTR M9100
CranksetShimano 105Shimano Dura-Ace Di2
ChainringShimano 105Shimano Dura-Ace Di2
Bottom bracketShimano Threaded BSAShimano SM-BB92-41B
WheelsetDT Swiss G540BMC CE 40 SL
TireSpecialized Mondo, Mondo EnduranceVittoria Corsa N.EXT
RimDT Swiss G 540not listed
BrakeShimano 105Shimano Dura-Ace Di2
HandlebarSpecialized HoverBMC ICS Carbon Evo
StemSpecialized FutureBMC ICS Carbon Evo
GripsSupacaz Super Sticky Kushnot listed
Bar tapeSupacaz Super Sticky Kushnot listed
SeatpostSpecialized S-Works PaveBMC Roadmachine 01 D-shaped
SaddleSpecialized Power SportSelle Italia Novus Boost Evo Superflow
Rotornot listedShimano RT-CL900

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