Like most sites, this site uses cookies to make it work. By continuing to use the site you accept our cookie policy. You won’t be shown this message again :)

You are using a browser that does not support javascript. Some aspects of this site may not work as intended.

We've got 11,000+ bikes in the comparison database. Find another?

Giant Fathom 1 2021

Prove Humanity: Please click here to start.

You should not have to do this more than once.
If you continue to see this message, please email hello@[the site's address] for support.

Geometry

To view geometry data you must use a web browser that supports JavaScript. See: browser-update.org

	S	M	L	XL
Add to Compare
Reach	454	382	472	502
Stack	511	498	657	626
Top Tube (effective)	620	705	562	594
Seat Tube C-T	400	355	552	465
Head Angle	73	78	65	57
Seat Angle	62	89	80	87
Head Tube	93	92	104	126
Chainstay	452	375	390	382
Wheelbase	1085	1240	1359	1312
Standover	769	809	882	917
BB Drop	64	61	70	66
Fork Rake / Offset	38	39	48	47
Trail	98	134	93	112
Wheel Size	27.5"	27.5"	27.5"	27.5"
Handlebar Width	920	638	624	884
Stem Length	41	36	51	59
Crank Length	166	180	192	201
Data Source	Manufacturer	Manufacturer	Manufacturer	Manufacturer

Measurements are in millimeters and degrees.

Problem? Flag for Review or

If you like the site, can we ask a favor?

Click now, buy soon, and we'll get a few cents.

Jenson USA - Competitive Cyclist

Thank you! Bob & Dave

Also! Search by Stack and Reach

You can now search the database by numbers.

Find bikes that match your geometry criteria.