Specialized Roubaix SL8 (2024) – geometry

Name: Specialized Roubaix SL8 (2024)
Brand: Specialized

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

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

Measure	Roubaix SL8 (2024) 54
Frame
Stackmm	585
Reachmm	381
Stack / Reach	1.54
Head angle°	72.3°
Seat angle°	74.0°
Head tubemm	122
Seat tubemm	465
Top tube (effective)mm	550
Chainstaymm	420
Rear centre (horizontal)mm	413
Wheelbasemm	1005
Front centremm	598
BB dropmm	78
BB heightmm	270
Fork offsetmm	47
Trailmm	61
Fork axle-to-crownmm	375
Cockpit & riding position
Bar reachmm	467
Bar stackmm	643
Saddle – barmm	665
Saddle-to-bar dropmm	49

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

Geometry table Specialized Roubaix SL8 (2024)

Road · 700c · Sizes 44–64 · Stack 543–685 mm · Reach 353–409 mm · Head angle 69.3–73.5°

Measure	44	49	52	54	56	58	61	64
Stackmm	543	549	566	585	605	630	665	685
Reachmm	353	363	370	381	389	397	403	409
Stack / Reach	1.54	1.51	1.53	1.54	1.56	1.59	1.65	1.67
Head angle°	69.3°	70.8°	71.5°	72.3°	73.0°	73.0°	73.5°	73.5°
Seat angle°	75.0°	74.0°	74.0°	74.0°	73.5°	73.5°	73.5°	73.0°
Head tubemm	90	90	105	122	140	168	202	222
Seat tubemm	365	410	446	465	485	505	545	581
Top tube (effective)mm	503	523	534	550	569	584	600	618
Chainstaymm	418	418	418	420	420	423	423	423
Rear centre (horizontal)mm	410	410	410	413	413	416	416	416
Wheelbasemm	994	992	998	1005	1012	1031	1042	1054
Front centremm	589	587	593	598	604	620	631	634
BB dropmm	80	80	80	78	78	78	78	78
BB heightmm	269	269	269	270	270	271	271	271
Fork offsetmm	52	52	52	47	47	47	47	47
Trailmm	76	66	62	61	57	57	54	54
Fork axle-to-crownmm	375	375	375	375	375	375	375	375

italic = calculated from the other values · Source: Geometry table Specialized, as of Oct 25, 2026

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.

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.

New bike – what do I need to set up?

Choose the bike you want to transfer your position to. We calculate every size.

Explore

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

Each line is a frame size across all selected measures. Drag on an axis to filter a range – this also affects the chart and the similarity list.

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

Add a bike

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

Paste a geometry table

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

Specialized Roubaix SL8 (2024) – geometry

Similar geometry

Similar to Roubaix SL8 (2024) 54

Geometry profile