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?

B'Twin Ultra 900 AF 2017

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

	XS	S	M	L	XL
Add to Compare
Reach	347	386	325	448	435
Stack	591	562	489	661	718
Top Tube (effective)	436	601	509	488	465
Seat Tube C-T	583	465	654	560	718
Head Angle	81	78	63	61	59
Seat Angle	71	66	73	64	74
Head Tube	99	145	167	173	176
Chainstay	480	351	423	391	380
Wheelbase	1124	1123	1002	1071	1151
Front Centre	523	670	568	539	494
BB Drop	69	69	57	73	55
Fork Rake / Offset	49	43	50	52	37
Fork Length (A2C)	338	367	428	303	331
Wheel Size	700c	700c	700c	700c	700c
Data Source	Manufacturer	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.