Quiver

2022 Specialized Crux FACT 12r Carbon vs 2023 Cervélo Áspero RX815

The 54 is the Cervélo Áspero RX815 size closest to your 54 Specialized Crux FACT 12r Carbon. 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 Cervélo Áspero RX815

Compared with the Specialized Crux FACT 12r Carbon in 54, the Cervélo Áspero RX815 in 54 places the top of the head tube 5 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 13 mm shorter, which can contribute to quicker direction changes.

Frame stack
−5 mm
Lower front end
Frame reach
±0 mm
About the same reach
Wheelbase
−13 mm
Shorter: quicker to change direction
Head angle
+0.5°
Steeper: sharper steering
Chainstays
−5 mm
Shorter: livelier

The two frames

2022 Specialized Crux FACT 12r Carbon (54) and 2023 Cervélo Áspero RX815 (54), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Crux FACT 12r Carbon is drawn in full with its measurements, and the Cervélo Áspero RX815 is the colored outline on top.J 1023

Specialized Crux FACT 12r Carbon, 54Cervélo Áspero RX815, 54Drawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Crux FACT 12r Carbon 54Cervélo Áspero RX815 54Difference
Reach388mm388±0 mm
Stack560mm555−5 mm
Head tube angle71.5°72+0.5°
Seat tube angle74°73.5−0.5°
Chainstay length425mm420−5 mm
Wheelbase1023mm1010−13 mm
BB drop72mm76+4 mm
BB height286mmnot listed
Standover794mm764−30 mm
Seat tube length521mmnot listed
Fork length401mmnot listed
Head tube length130mm133+3 mm
Effective top tubenot listed553

Differences are the Cervélo Áspero RX815 minus the Specialized Crux FACT 12r Carbon. Full charts: 2022 Specialized Crux FACT 12r Carbon, 2023 Cervélo Áspero RX815.

Where each sits in its class

Specialized Crux FACT 12r CarbonCervélo Áspero RX815

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other gravel 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 Crux FACT 12r CarbonS-Works FACT 12r CarbonCervélo Áspero RX815GRX RX815 Di2
FrameSpecialized S-Works Crux FACTnot listed
SeatpostRoval Alpinistnot listed
Forknot listedCervélo Aspero Fork
Cassettenot listedShimano HG800
Cranksetnot listedShimano GRX RX810
Tirenot listedPanaracer Gravel King SK
Headsetnot listedFSA IS2

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