2026 Specialized Tarmac SL8 Pro SRAM vs 2025 Trek Émonda ALR

What changes on the Trek Émonda ALR

Compared with the Specialized Tarmac SL8 Pro SRAM in 54, the Trek Émonda ALR in 62 places the top of the head tube 76 mm higher and 19 mm further forward, relative to the bottom bracket. Its wheelbase is 32 mm longer, which can contribute to stability at speed.

Frame stack

+76 mm

Higher front end

Frame reach

+19 mm

Longer frame reach

Wheelbase

+32 mm

Longer: steadier at speed

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 Specialized Tarmac SL8 Pro SRAM numbers we have for size 54 are missing the head angle, seat angle and chainstay length. The numbers below still compare.

Geometry side by side

Differences are the Trek Émonda ALR minus the Specialized Tarmac SL8 Pro SRAM. Full charts: 2026 Specialized Tarmac SL8 Pro SRAM, 2025 Trek Émonda ALR.

Where each sits in its class

Specialized Tarmac SL8 Pro SRAMTrek Émonda ALR

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.