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Giant Fathom 1 2021

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Geometry

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	S	M	L	XL
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Reach	351	412	420	403
Stack	689	690	738	682
Top Tube (effective)	553	595	751	739
Seat Tube C-T	336	353	544	488
Head Angle	71	61	72	78
Seat Angle	67	82	61	79
Head Tube	87	85	93	129
Chainstay	373	477	420	477
Wheelbase	1252	1088	1318	1315
Standover	697	634	759	810
BB Drop	66	50	54	50
Fork Rake / Offset	35	42	46	51
Trail	112	101	106	120
Wheel Size	27.5"	27.5"	27.5"	27.5"
Handlebar Width	822	899	914	675
Stem Length	46	36	52	42
Crank Length	140	203	147	162
Data Source	Manufacturer	Manufacturer	Manufacturer	Manufacturer

Measurements are in millimeters and degrees.

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