Quiver

2024 Specialized Tarmac SL8 Pro Shimano vs 2024 Trek Émonda SLR H2

The Trek Émonda SLR H2 size closest to your 54 is the 54. Compare the 54 instead

What changes on the Trek Émonda SLR H2

Compared with the Specialized Tarmac SL8 Pro Shimano in 54, the Trek Émonda SLR H2 in 58 places the top of the head tube 44 mm higher and 10 mm further forward, relative to the bottom bracket. Its wheelbase is 14 mm longer, which can contribute to stability at speed.

Frame stack
+44 mm
Higher front end
Frame reach
+10 mm
Longer frame reach
Wheelbase
+14 mm
Longer: steadier at speed
Head angle
+0.8°
Steeper: sharper steering
Chainstays
+1 mm
About the same

The two frames

2024 Specialized Tarmac SL8 Pro Shimano (54)The Specialized Tarmac SL8 Pro Shimano frame drawn to scale.J 978

Only the Specialized Tarmac SL8 Pro Shimano is drawn. The Trek Émonda SLR H2 numbers we have for size 58 are missing the seat angle.

Geometry side by side

MeasurementSpecialized Tarmac SL8 Pro Shimano 54Trek Émonda SLR H2 58Difference
Reach381mm391+10 mm
Stack552mm596+44 mm
Head tube angle73°73.8°+0.8°
Seat tube angle74°not listed
Chainstay length410mm411+1 mm
Wheelbase978mm992+14 mm
BB drop72mm68−4 mm
BB height268mmnot listed
Standover768mm786+18 mm
Seat tube length473mm553+80 mm
Fork length370mmnot listed
Head tube length137mm190+53 mm
Effective top tubenot listed573

Differences are the Trek Émonda SLR H2 minus the Specialized Tarmac SL8 Pro Shimano. Full charts: 2024 Specialized Tarmac SL8 Pro Shimano, 2024 Trek Émonda SLR H2.

Where each sits in its class

Specialized Tarmac SL8 Pro ShimanoTrek Émonda SLR H2

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 Tarmac SL8 Pro ShimanoPro - Shimano Ultegra Di2Trek Émonda SLR H2SLR H2
FrameSpecialized Tarmac SL8 FACTTrek Ultralight 700
ShifterShimano Ultegra R8170 Di2not listed
DerailleurShimano Ultegra R8150 Di2not listed
CassetteShimano Ultegranot listed
ChainShimano Ultegranot listed
CranksetShimano Ultegra R8100not listed
WheelsetRoval Rapide CL IInot listed
TireSpecialized S-Works Turbonot listed
BrakeShimano Ultegra R8170 Di2not listed
HandlebarRoval Rapidenot listed
SeatpostSpecialized S-Works Tarmac SL8Trek Not
SaddleSpecialized Powernot 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