Quiver

2025 Specialized Crux Expert vs 2026 Colnago G4-X SRAM XPLR

The Colnago G4-X SRAM XPLR size closest to your 54 is the 480. Compare the 480 instead

What changes on the Colnago G4-X SRAM XPLR

Compared with the Specialized Crux Expert in 54, the Colnago G4-X SRAM XPLR in 520 places the top of the head tube 13 mm higher and about as far forward, relative to the bottom bracket.

Frame stack
+13 mm
Higher front end
Frame reach
+2 mm
About the same reach
Wheelbase
n/a
One of the bikes has no number for this
Head angle
±0.0°
About the same head angle
Chainstays
+5 mm
Longer: more planted

The two frames

2025 Specialized Crux Expert (54)The Specialized Crux Expert frame drawn to scale.J 1023

Only the Specialized Crux Expert is drawn. The Colnago G4-X SRAM XPLR numbers we have for size 520 are missing the wheelbase.

Geometry side by side

MeasurementSpecialized Crux Expert 54Colnago G4-X SRAM XPLR 520Difference
Reach388mm390+2 mm
Stack560mm573+13 mm
Head tube angle71.5°71.5±0.0°
Seat tube angle74°73.5−0.5°
Effective top tube549mm560+11 mm
Chainstay length425mm430+5 mm
Wheelbase1023mmnot listed
BB drop72mm70−2 mm
BB height286mmnot listed
Standover794mmnot listed
Seat tube length521mmnot listed
Fork length401mm406+5 mm
Head tube length130mmnot listed

Differences are the Colnago G4-X SRAM XPLR minus the Specialized Crux Expert. Full charts: 2025 Specialized Crux Expert, 2026 Colnago G4-X SRAM XPLR.

Where each sits in its class

Specialized Crux ExpertColnago G4-X SRAM XPLR

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 ExpertExpertColnago G4-X SRAM XPLRSRAM Force XPLR AXS 1x
FrameSpecialized FACT 10rColnago G4-X
ShifterSRAM Rival Etap AXSSRAM Force
DerailleurSRAM Rival XPLR eTap AXSSRAM RD-FRC Force
CassetteSRAM XPLRSRAM Force
ChainSRAM RivalSRAM CN-FRC Force
CranksetSRAM RivalSRAM DUB
Bottom bracketSRAM DUBSRAM DUB
WheelsetRoval Terra CVision SC45
TireSpecialized PathfinderPirelli Cinturato Gravel
BrakeSRAM Rival eTap AXSSRAM Force
HandlebarSpecialized Adventure GearColnago CC.01 Wide
SeatpostRoval Terra CarbonColnago Carbon D-Shape
SaddleSpecialized Power ExpertSelle Italia Novus Boost Evo Superflow
Forknot listedColnago G4-X Carbon
Chainringnot listedSRAM 40T
Rotornot listedSRAM CenterLine XR
Gripsnot listedColnago Grip Black
Headsetnot listedAcros 42x52x7
Bottle cagenot listedColnago Matte Black

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