BMC Kaius 01 (2026) – geometry

Name: BMC Kaius 01 (2026)
Brand: BMC

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

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

Measure	Kaius 01 (2026) 54
Frame
Stackmm	550
Reachmm	401
Stack / Reach	1.37
Head angle°	72.0°
Seat angle°	73.0°
Head tubemm	123
Seat tubemm	468
Top tube (effective)mm	569
Chainstaymm	428
Rear centre (horizontal)mm	420
Wheelbasemm	1015
Front centremm	608
BB dropmm	80
BB heightmm	271
Fork offsetmm	45
Trailmm	68
Fork axle-to-crownmm	387
Cockpit & riding position
Bar reachmm	477
Bar stackmm	607
Saddle – barmm	687
Saddle-to-bar dropmm	82

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Kaius 01 (2026)

Geometry table BMC Kaius 01 (2026)

Gravel · 700c · Sizes 47–61 · Stack 510–620 mm · Reach 390–414 mm · Head angle 71.0–72.0°

Measure	47	51	54	56	58	61
Stackmm	510	530	550	570	595	620
Reachmm	390	397	401	405	410	414
Stack / Reach	1.31	1.34	1.37	1.41	1.45	1.50
Head angle°	71.0°	71.0°	72.0°	72.0°	72.0°	72.0°
Seat angle°	73.0°	73.0°	73.0°	73.0°	73.0°	73.0°
Head tubemm	85	106	123	144	170	196
Seat tubemm	428	452	468	493	513	533
Top tube (effective)mm	546	559	569	579	592	604
Chainstaymm	428	428	428	428	428	428
Rear centre (horizontal)mm	420	420	420	420	420	420
Wheelbasemm	1003	1017	1015	1026	1039	1051
Front centremm	596	610	608	619	632	644
BB dropmm	80	80	80	80	80	80
BB heightmm	271	271	271	271	271	271
Fork offsetmm	50	50	45	45	45	45
Trailmm	68	68	68	68	68	68
Fork axle-to-crownmm	387	387	387	387	387	387

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

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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.

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Similar to Kaius 01 (2026) 54

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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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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

BMC Kaius 01 (2026) – geometry

Similar geometry

Similar to Kaius 01 (2026) 54

Geometry profile