Quiver

2022 Specialized Crux Comp vs 2023 Cervélo Áspero RX815

The Cervélo Áspero RX815 size closest to your 54 is the 54. Compare the 54 instead

What changes on the Cervélo Áspero RX815

Compared with the Specialized Crux Comp in 54, the Cervélo Áspero RX815 in 48 places the top of the head tube 55 mm lower and 18 mm further back, relative to the bottom bracket. Its wheelbase is 33 mm shorter, which can contribute to quicker direction changes.

Frame stack
−55 mm
Lower front end
Frame reach
−18 mm
Shorter frame reach
Wheelbase
−33 mm
Shorter: quicker to change direction
Head angle
−0.5°
Slacker: calmer steering
Chainstays
−5 mm
Shorter: livelier

The two frames

2022 Specialized Crux Comp (54) and 2023 Cervélo Áspero RX815 (48), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Crux Comp is drawn in full with its measurements, and the Cervélo Áspero RX815 is the colored outline on top.J 1023

Specialized Crux Comp, 54Cervélo Áspero RX815, 48Drawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Crux Comp 54Cervélo Áspero RX815 48Difference
Reach388370−18 mm
Stack560505−55 mm
Head tube angle71.571−0.5°
Seat tube angle7474.5+0.5°
Chainstay length425mm420−5 mm
Wheelbase1023990−33 mm
BB drop72mm78.5+7 mm
BB height286mmnot listed
Standover794mm690−104 mm
Seat tube length521mmnot listed
Fork length401mmnot listed
Head tube length130mm83−47 mm
Effective top tubenot listed512

Differences are the Cervélo Áspero RX815 minus the Specialized Crux Comp. Full charts: 2022 Specialized Crux Comp, 2023 Cervélo Áspero RX815.

Where each sits in its class

Specialized Crux CompCervélo 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 CompCompCervélo Áspero RX815GRX RX815 Di2
FrameSpecialized Crux FACT 10rnot listed
ForkSpecialized FACT 12rCervélo Aspero Fork
ShifterSRAM Rival 1not listed
DerailleurSRAM Rival 1 long cagenot listed
CassetteSRAM XPLRShimano HG800
ChainKMC X11not listed
CranksetSRAM Rival 1xShimano GRX RX810
ChainringSRAM 40Tnot listed
Bottom bracketSRAM GXPnot listed
WheelsetDT Swiss G540 Discnot listed
TireSpecialized Pathfinder ProPanaracer Gravel King SK
BrakeSRAM Rivalnot listed
HandlebarSpecialized Adventure Gearnot listed
StemSpecialized 3D-forgednot listed
Bar tapeSupacaz Super Sticky Kushnot listed
SeatpostRoval Terranot listed
SaddleSpecialized Power Sportnot listed
Headsetnot listedFSA IS2

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