Quiver

2025 Specialized Allez Sprint Comp vs 2024 Trek Émonda SLR RSL H1

The 50 is the Trek Émonda SLR RSL H1 size closest to your 49 Specialized Allez Sprint Comp. 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 Trek Émonda SLR RSL H1

Compared with the Specialized Allez Sprint Comp in 49, the Trek Émonda SLR RSL H1 in 50 places the top of the head tube at about the same height and 5 mm further forward, relative to the bottom bracket.

Frame stack
−2 mm
About the same height
Frame reach
+5 mm
Longer frame reach
Wheelbase
±0 mm
About the same
Head angle
+0.3°
Steeper: sharper steering
Chainstays
±0 mm
About the same

The two frames

2025 Specialized Allez Sprint Comp (49)The Specialized Allez Sprint Comp frame drawn to scale.J 974

Only the Specialized Allez Sprint Comp is drawn. The Trek Émonda SLR RSL H1 numbers we have for size 50 are missing the seat angle.

Geometry side by side

MeasurementSpecialized Allez Sprint Comp 49Trek Émonda SLR RSL H1 50Difference
Reach378mm383+5 mm
Stack508mm506−2 mm
Head tube angle71.75°72.1°+0.3°
Seat tube angle75.5°not listed
Effective top tube509mm522+13 mm
Chainstay length410mm410±0 mm
Wheelbase974mm974±0 mm
BB drop74mm72−2 mm
BB height266mmnot listed
Standover735mm696−39 mm
Seat tube length470mm453−17 mm
Fork length366mmnot listed
Head tube length105mm100−5 mm

Differences are the Trek Émonda SLR RSL H1 minus the Specialized Allez Sprint Comp. Full charts: 2025 Specialized Allez Sprint Comp, 2024 Trek Émonda SLR RSL H1.

Where each sits in its class

Specialized Allez Sprint CompTrek Émonda SLR RSL H1

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 Allez Sprint CompCompTrek Émonda SLR RSL H1SLR RSL H1
ShifterShimano 105not listed
DerailleurShimano 105not listed
CassetteShimano 105not listed
ChainShimano 105not listed
CranksetShimano 105 R7100not listed
WheelsetDT Swiss R470not listed
TireSpecialized Turbo Pronot listed
BrakeShimano 105not listed
SeatpostSpecialized S-Works TarmacTrek Not
SaddleSpecialized Power Sportnot listed
Forknot listedTrek Emonda SLR
Headsetnot listedBontrager Expander Plug

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