Quiver

2024 Specialized Roubaix SL8 vs 2026 BMC Roadmachine TWO

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 TWO

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
n/a
One of the bikes has no number for this
Chainstays
n/a
One of the bikes has no number for this

The two frames

2024 Specialized Roubaix SL8 (54)The Specialized Roubaix SL8 frame drawn to scale.J 1005

Only the Specialized Roubaix SL8 is drawn. The BMC Roadmachine TWO numbers we have for size 56 are missing the reach, stack, head angle, chainstay length and wheelbase.

Geometry side by side

MeasurementSpecialized Roubaix SL8 54BMC Roadmachine TWO 56Difference
Reach381mmnot listed
Stack585mmnot listed
Head tube angle72.3°not listed
Seat tube angle74°74.2+0.2°
Chainstay length420mmnot listed
Wheelbase1005mmnot listed
BB drop78mmnot listed
BB height270mmnot listed
Standover766mmnot listed
Seat tube length465mmnot listed
Fork length375mmnot listed
Head tube length122mmnot listed

Differences are the BMC Roadmachine TWO minus the Specialized Roubaix SL8. Full charts: 2024 Specialized Roubaix SL8, 2026 BMC Roadmachine TWO.

Where each sits in its class

Specialized Roubaix SL8BMC Roadmachine TWO

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 SL8S-Works SL8BMC Roadmachine TWOTWO
FrameSpecialized RoubaixBMC Roadmachine
ForkSpecialized Future Shock 3.3not listed
ShifterSRAM Red eTap AXSShimano 105 R7170
DerailleurSRAM RED eTAP AXSShimano 105 R7150 Di2, Shimano 105 R7150
CassetteSRAM XG 1290Shimano CS-HG710
ChainSRAM RedShimano Deore M6100
CranksetSRAM RED AXSShimano 105 R7100
Bottom bracketSRAM DUBShimano BB-RS500-PB
WheelsetRoval Terra CLX IIPRD23
TireSpecialized S-Works Mondo 2BRVittoria Rubino V
BrakeSRAM REDShimano 105 R7170 Di2
HandlebarSpecialized Hover CarbonBMC HB D4 03
StemSpecialized S-Works FutureBMC RSM 01
SeatpostSpecialized S-Works Pave Seat postBMC Roadmachine Carbon D-shaped
SaddleSpecialized S-Works PowerSelle Italia Model X Superflow
Chainringnot listedShimano 50T, Shimano 34T
Rotornot listedShimano SM-RT70, Shimano 160mm
Bagnot listedStorage Pouch
Lightnot listedBMC Integrated Rear Light 25

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