Quiver

2024 Trek Émonda ALR Disc Frameset vs 2026 Specialized Tarmac SL8 Pro Shimano

The 56 is the Specialized Tarmac SL8 Pro Shimano size closest to your 56 Trek Émonda ALR Disc Frameset. 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 Specialized Tarmac SL8 Pro Shimano

Compared with the Trek Émonda ALR Disc Frameset in 56, the Specialized Tarmac SL8 Pro Shimano in 56 places the top of the head tube at about the same height and 4 mm further forward, relative to the bottom bracket. Its wheelbase is 8 mm longer, which can contribute to stability at speed.

Frame stack
+2 mm
About the same height
Frame reach
+4 mm
Longer frame reach
Wheelbase
+8 mm
Longer: steadier at speed
Head angle
±0.0°
About the same head angle
Chainstays
±0 mm
About the same

The two frames

We can't draw these frames yet. The Trek Émonda ALR Disc Frameset numbers we have for size 56 are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek Émonda ALR Disc Frameset 56Specialized Tarmac SL8 Pro Shimano 56Difference
Reach391395+4 mm
Stack563565+2 mm
Head tube angle73.5°73.5±0.0°
Effective top tube559not listed
Chainstay length410410±0 mm
Wheelbase983991+8 mm
BB drop70not listed
Standover768not listed
Seat tube length525not listed
Head tube length151157+6 mm
Seat tube anglenot listed73.5

Differences are the Specialized Tarmac SL8 Pro Shimano minus the Trek Émonda ALR Disc Frameset. Full charts: 2024 Trek Émonda ALR Disc Frameset, 2026 Specialized Tarmac SL8 Pro Shimano.

Where each sits in its class

Trek Émonda ALR Disc FramesetSpecialized Tarmac SL8 Pro Shimano

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.

PartTrek Émonda ALR Disc FramesetSpecialized Tarmac SL8 Pro ShimanoPro - Shimano Ultegra Di2
Framenot listedSpecialized Tarmac SL8
Forknot listedSpecialized FACT 10r
Shifternot listedShimano Ultegra R8170
Derailleurnot listedShimano Ultegra R8150 Di2
Cassettenot listedShimano Ultegra
Chainnot listedShimano XT M8100
Cranksetnot listedShimano Ultegra R81000
Bottom bracketnot listedShimano Threaded BSA
Wheelsetnot listedRoval Rapide CL III
Tirenot listedSpecialized S-Works Turbo
Brakenot listedShimano Ultegra R8170
Rotornot listedShimano Ultegra R8170
Handlebarnot listedRoval Rapide Cockpit
Stemnot listedRoval Rapide Cockpit
Bar tapenot listedSupacaz Super Sticky Kush
Seatpostnot listedSpecialized S-Works Tarmac SL8
Saddlenot listedSpecialized Power Pro

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