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Surly Preamble 2023

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Geometry

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	XS	SM	MD	LG	XL
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Reach	361	424	433	456	406
Stack	421	444	650	623	641
Top Tube (actual)	596	538	503	664	682
Seat Tube C-T	395	406	476	575	560
Head Angle	70	57	85	59	79
Seat Angle	87	70	74	81	65
Head Tube	106	113	109	194	192
Chainstay	363	426	388	365	387
Wheelbase	821	1043	851	863	1121
Standover	705	867	850	953	1065
BB Drop	61	61	62	69	76
Fork Rake / Offset	48	39	44	49	42
Fork Length (A2C)	446	420	438	357	368
Handlebar Width	605	806	678	651	669
Stem Length	86	74	102	82	118
Stem Angle	7	6	6	6	5
Crank Length	162	175	136	151	153
Rider Height	1524–1651	1625.6–1727.2	1701.8–1828.8	1803.4–1905	1879.6–2006.6
Data Source	Manufacturer	Manufacturer	Manufacturer	Manufacturer	Manufacturer

Measurements are in millimeters and degrees.

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Image showing geometry measurements

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