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 :)

We've got 5,000+ bikes in the comparison database. Find another?

B'Twin Ultra 900 AF 2017

Please login now to unscramble the numbers

We ask that you login after viewing so many bikes, to protect our data from thieving robots.

The data shown below is now total nonsense.

You need to login to continue.

It's totally free - no password - no spam - no catch.

Geometry

Select two bikes to compare.
Any bike, any page.

	XS	S	M	L	XL
Compare
Top Tube (effective)	464	506	585	475	628
Seat Tube C-T	431	446	643	614	667
Head Angle	56	75	74	72	77
Seat Angle	60	86	78	74	87
Head Tube	100	102	171	142	238
Chainstay	426	435	380	481	473
Wheelbase	1096	967	977	1112	829
Front Centre	612	650	633	630	510
BB Drop	69	77	78	63	78
Fork Rake / Offset	50	44	40	49	53
Fork Length (A2C)	328	432	352	437	358
Wheel Size	700c	700c	700c	700c	700c
Data Source	Manufacturer	Manufacturer	Manufacturer	Manufacturer	Manufacturer

Measurements are in millimeters and degrees, unless otherwise noted.

Problem? Edit Bike - Edit Geometry

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

Like this project? Subscribe for occasional emails about new things. No Spam. Promise.