Roubaix SL8 (2024) vs. Domane SL Gen 3 (2020–2022)

A

Specialized · Road · 700cManufacturer data · as of Oct 25, 2026Source

Cockpit: 20 mm spacers · 100 mm stem · -6° (stock)

SpacersStemAngle °

Saddle: same saddle height · 0 mm setback · centred (default)

Saddle heightSetbackForward (+)/back

B

Trek · Road · 700c · tyres up to 38 mmManufacturer data · as of Oct 25, 2026Source

Cockpit: 20 mm spacers · 100 mm stem · -6°

SpacersStemAngle °

Saddle: same saddle height · 0 mm setback · centred (default)

Saddle heightSetbackForward (+)/back

Reach: Horizontal distance from the bottom bracket to the top of the head tube. More reach = more stretched-out position. · grid 10 cm

Domane SL Gen 3 (2020–2022) 56 vs. Roubaix SL8 (2024) 54: 6 mm more stack · 0.7° slacker seat angle · 5 mm lower bottom bracket

Measure	Roubaix SL8 (2024) 54	Domane SL Gen 3 (2020–2022) 56
Frame
Stackmm	585	591+6
Reachmm	381	377−4
Stack / Reach	1.54	1.57+0.03
Head angle°	72.3°	71.9°−0.4°
Seat angle°	74.0°	73.3°−0.7°
Head tubemm	122	175+53
Seat tubemm	465	525+60
Top tube (effective)mm	550	554+4
Chainstaymm	420	420±0
Rear centre (horizontal)mm	413	413±0
Wheelbasemm	1005	1008+3
Front centremm	598	600+2
BB dropmm	78	78±0
BB heightmm	270	265−5
Fork offsetmm	47	48+1
Trailmm	61	61±0
Fork axle-to-crownmm	375	–
Cockpit & riding position
Bar reachmm	467	462−4
Bar stackmm	643	650+7
Saddle – barmm	665	669+4
Saddle-to-bar dropmm	49	40−9
Tyre clearancemm	–	38

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Roubaix SL8 (2024)

Size finder · transfer your fit

Transfer your riding position to a new bike

Enter your well-fitting bike with saddle height, seatpost and cockpit. For every size of the new bike we calculate the stem, spacers, saddle height, setback and saddle position that reproduce the same contact points. This is a geometric approximation without guarantee and does not replace a professional bike fit.

1

Your bike – how you sit today

Saddle

mmmmmm

Cockpit

mmmm°

Saddle: 198 mm behind · 692 mm above BB
Handlebar: 467 mm ahead · 643 mm above BB
Saddle–bar: 665 mm · drop 49 mm

Saddle height: bottom bracket centre to top of saddle along the seat-tube axis. Saddle fore/aft: + forward, − back. Spacers incl. top cap, handlebar centre = stem clamp.

2

New bike – what do I need to set up?

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All frame sizes at a glance

All frame sizes by stack and reach or any other measure – click a dot or line to add the bike to the comparison.

1040 of 1040 sizes · 159 models

Each dot is a frame size. Coloured dots with a letter = current comparison.

Similar to Roubaix SL8 (2024) 54

only Road

Similarity over the axes of the geometry profile below; stack and reach count 1.5×. The best-matching size per model, filters are respected.

Geometry profile

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Drag on an axis to filter a range · click a line to compare the bike

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BrandModelModel year *CategoryWheel (front)Wheel rearTyre clearance, max. (mm)Source (manufacturer page with geometry table) *

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Select the table on the manufacturer's page, copy it and paste it here. Sizes as columns or rows, German or English; values like “435/432” for flip chips are recognised.

Sizes (mm / degrees · * required · setting e.g. “High”, “Low”, “Mullet”)

Size*	Setting	Stack*	Reach*	Head ∠ °*	Seat ∠ °*	Head tube*	Chainstay*	BB drop*	BB drop rear	Seat tube	Top tube	Wheelbase	Fork offset	Axle-to-crown	BB height	Front ctr.	Trail	Stem	Spacers