Quiver

2021 Giant Defy Advanced Pro vs 2023 Specialized Allez Sport

The Specialized Allez Sport size closest to your L is the 58. Compare the 58 instead

What changes on the Specialized Allez Sport

Compared with the Giant Defy Advanced Pro in L, the Specialized Allez Sport in 54 places the top of the head tube 36 mm lower and 20 mm further back, relative to the bottom bracket.

Frame stack
−36 mm
Lower front end
Frame reach
−20 mm
Shorter frame reach
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

We can't draw these frames yet. The Giant Defy Advanced Pro numbers we have for size L are missing the head angle, seat angle, chainstay length and wheelbase. The numbers below still compare.

Geometry side by side

MeasurementGiant Defy Advanced Pro LSpecialized Allez Sport 54Difference
Reach390370−20 mm
Stack605569−36 mm
Head tube anglenot listed72°
Seat tube anglenot listed73.25°
Chainstay lengthnot listed425mm
Wheelbasenot listed998mm
BB dropnot listed76mm
BB heightnot listed274mm
Standovernot listed781mm
Seat tube lengthnot listed510mm
Fork lengthnot listed378mm
Head tube lengthnot listed155mm

Differences are the Specialized Allez Sport minus the Giant Defy Advanced Pro. Full charts: 2021 Giant Defy Advanced Pro, 2023 Specialized Allez Sport.

Where each sits in its class

Giant Defy Advanced ProSpecialized Allez Sport

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.

PartGiant Defy Advanced ProAdvanced Pro 2Specialized Allez SportSport
FrameGiant DefySpecialized Allez E5
ForkGiant OverDrive 2Specialized FACT
ShifterShimano UltegraShimano Tiagra
DerailleurShimano UltegraShimano Tiagra
CassetteShimano cassettenot listed
ChainKMC X11SL-1KMC X10
CranksetShimano Ultegra Mid CompactPraxis Alba
WheelsetGiant SLR-2 42Specialized Axis Sport
TireGiant Gavia Fondo 1Specialized Roadsport
BrakeShimano UltegraShimano Tiagra
HandlebarGiant D-Fuse SLRSpecialized Shallow Drop
StemGiant Contact SLnot listed
SeatpostGiant D-Fuse SLRnot listed
SaddleGiant Contact Fleet SLSpecialized Bridge Saddle
Chainringnot listedPraxis Alba

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