BikesCompareTarmac SL8 vs Roubaix SL8

Specialized Tarmac SL8 vs Roubaix SL8 geometry

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178 cm · 5 ft 10 in
auto85 cm · 33.5 in
Size 56

Render Align 50%

Geometry

Size44495254565861
Stack mm501514527544565591612
Reach mm366375380384395402408
Head tube angle °70.571.7572.573.073.573.574.0
Seat tube angle °75.575.574.074.073.573.573.0
Head tube length mm99109120137157184204
Seat tube mm433445456473494515545
Chainstay mm410410410410410410410
BB drop mm74747472727272
Fork rake mm47474744444444
Stack to reach1.371.371.391.421.431.471.50
Effective top tube mmi496508531540562577595
Wheelbase mmi97097397597899110051012

Size for size

More Tarmac SL8 comparisons

Against the Tarmac SL8 56, nearest size.

Canyon Ultimate CFR / CF SLX2021–26M · −5 / −2Specialized Tarmac SL72021–2356 · −10 / +3Trek Madone SLR / SL Gen 82024–26ML · −3 / −6Cannondale SuperSix EVOGen 5, 2026 on56 · ±0 / −2

More Roubaix SL8 comparisons

Against the Roubaix SL8 54, nearest size.

Trek Domane SLR / SLGen 5, 2026 onML · +11 / −4Canyon Endurace CF / CF SLX2021–26M · +5 / −3Giant Defy Advanced / SL2025–26ML · −8 / +3Cervélo Caledonia-52021 on56 · −5 / +6

Compare any two frames

Specialized geometry chart (Tarmac SL8) · Specialized geometry chart (Roubaix SL8) · Frame stack and reach to the head tube top · Size finder assumes a 100mm stem on 20mm spacers · Report an error