Quiver

2020 Specialized Tarmac SL6 Frameset vs 2022 Specialized Aethos Expert

The 54 is the Specialized Aethos Expert size closest to your 54 Specialized Tarmac SL6 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 Aethos Expert

Compared with the Specialized Tarmac SL6 Frameset in 54, the Specialized Aethos Expert in 54 places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket. Its wheelbase is 5 mm longer, which can contribute to stability at speed.

Frame stack
±0 mm
About the same height
Frame reach
±0 mm
About the same reach
Wheelbase
+5 mm
Longer: steadier at speed
Head angle
±0.0°
About the same head angle
Chainstays
+5 mm
Longer: more planted

The two frames

2020 Specialized Tarmac SL6 Frameset (54) and 2022 Specialized Aethos Expert (54), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Tarmac SL6 Frameset is drawn in full with its measurements, and the Specialized Aethos Expert is the colored outline on top.J 973

Specialized Tarmac SL6 Frameset, 54Specialized Aethos Expert, 54Drawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Tarmac SL6 Frameset 54Specialized Aethos Expert 54Difference
Reach384mm384mm±0 mm
Stack544mm544mm±0 mm
Head tube angle73°73°±0.0°
Seat tube angle74°74°±0.0°
Chainstay length405mm410mm+5 mm
Wheelbase973mm978mm+5 mm
BB drop72mm72mm±0 mm
BB height268mm268mm±0 mm
Standover775mm748mm−27 mm
Seat tube length481mm481mm±0 mm
Fork length363mm369mm+6 mm
Head tube length143mm137mm−6 mm

Differences are the Specialized Aethos Expert minus the Specialized Tarmac SL6 Frameset. Full charts: 2020 Specialized Tarmac SL6 Frameset, 2022 Specialized Aethos Expert.

Where each sits in its class

Specialized Tarmac SL6 FramesetSpecialized Aethos Expert

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 SL6 FramesetSpecialized Aethos ExpertExpert
Framenot listedSpecialized Aethos FACT
Shifternot listedSpecialized Di2 Shimano Ultegra R8170
Derailleurnot listedSpecialized Di2 Shimano Ultegra R8150
Cassettenot listedShimano Ultegra
Chainnot listedShimano XT M8100
Cranksetnot listedShimano Ultegra R8100
Wheelsetnot listedRoval C38
Tirenot listedSpecialized S-Works Turbo
Brakenot listedShimano Ultegra R8170
Seatpostnot listedRoval Alpinist
Saddlenot listedSpecialized Power Expert

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