2026 Brother Cycles · G

2026 Brother Cycles Kepler geometry

Name: 2026 Brother Cycles Kepler
Brand: Brother Cycles

Full frame geometry for the 2026 Brother Cycles Kepler, size by size — stack, reach, angles and tube lengths.

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Geometry by size

Size	Stack (mm)	Reach (mm)	Seat angle (°)	Head angle (°)	Head tube (mm)	Top tube (mm)	BB drop (mm)	Chainstay (mm)	Wheelbase (mm)	Fork rake (mm)
50	530	372	74.5	71	95	520	70	430	1009	50
52	530	378	74	71	95	530	70	430	1014	50
54	543	384	73.5	71.5	105	545	70	430	1014	45
56	562	387	73	72	124	560	70	435	1025	45
58	580	392	72.5	72	142	575	70	435	1035	45
60	598	401	72	72	161	595	70	435	1049	45

All measurements in millimetres unless marked (°) for angles.