Kaius 01 (2026) vs. Áspero-5 (2022)

A

BMC · Gravel · 700cManufacturer data · as of Oct 25, 2026Source

Cockpit: 20 mm spacers · 90 mm stem · -6° (stock)

SpacersStemAngle °

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

Saddle heightSetbackForward (+)/back

B

Cervélo · Gravel · 700cManufacturer 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

Áspero-5 (2022) 54 vs. Kaius 01 (2026) 54: 15 mm less reach · 0.4° slacker head angle · 5 mm shorter chainstays

Measure	Kaius 01 (2026) 54	Áspero-5 (2022) 54
Frame
Stackmm	550	550±0
Reachmm	401	386−15
Stack / Reach	1.37	1.42+0.05
Head angle°	72.0°	71.6°−0.4°
Seat angle°	73.0°	73.1°+0.1°
Head tubemm	123	122−1
Seat tubemm	468	–
Top tube (effective)mm	569	552−17
Chainstaymm	428	423−5
Rear centre (horizontal)mm	420	415−5
Wheelbasemm	1015	1012−3
Front centremm	608	602−6
BB dropmm	80	80±0
BB heightmm	271	271±0
Fork offsetmm	45	52+7
Trailmm	68	62−6
Fork axle-to-crownmm	387	–
Cockpit & riding position
Bar reachmm	477	471−6
Bar stackmm	607	609+3
Saddle – barmm	687	680−7
Saddle-to-bar dropmm	82	79−2

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Kaius 01 (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.

1

Your bike – how you sit today

Saddle

mmmmmm

Cockpit

mmmm°

Saddle: 211 mm behind · 689 mm above BB
Handlebar: 477 mm ahead · 607 mm above BB
Saddle–bar: 687 mm · drop 82 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?

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 Kaius 01 (2026) 54

only Gravel

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