2018 B'TWIN Ultra 900 AF S

Build

700C/29 in × 25 mm

Insights

Average stack and reach vs trend of endurance road bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
542.7mm
Reach
369.3mm
Stack to Reach Ratio
1.47:1
Seat Tube Length, C-T
520mm
Top Tube Length, Effective/Horizontal HT Top
530mm
Head Tube Angle
72deg
Seat Tube Angle
74deg
Head Tube Length
122.5mm
Bottom Bracket Drop
67mm
Bottom Bracket Height
269mm
Chainstay Length
410mm
Chainstay Length Horizontal
404.5mm
Front-Center
575.1mm
Front-Center Horizontal
571.2mm
Wheelbase
975.7mm
Fork Offset/Rake
45mm
Fork Length (Axle-To-Crown)
375mm
Trail
61.9mm
mid/​neutral
Mechanical Trail
58.8mm
Wheel Flop
18.2mm
Tire to Pedal Spindle Distance
With 170 mm cranks
69.1mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
99mm

900 AF Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
25mm
Tire Outer Diameter
672mm
Bike Length with Tires
1647.7mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Aluminum
Fork Material
Carbon/Composite
Brake Type
Rim
Source:https://findabikelive.blob.core.windows.net/bikes/btwin-ultra-700-af-road-bike-greygreen-ultra-700-af-road-bike-greygreen-2017_2-large.jpg