2018 B'TWIN Ultra 900 AF M
Build
700C/29 in × 25 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of B'TWIN Ultra
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 570.1mm |
| Reach | 379.1mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 550mm |
| Top Tube Length, Effective/Horizontal HT Top | 548mm |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 147.5mm |
| Bottom Bracket Drop | 67mm |
| Bottom Bracket Height | 269mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404.5mm |
| Front-Center | 583.1mm |
| Front-Center Horizontal | 579.9mm |
| Wheelbase | 984.4mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 375mm |
| Trail | 55.7mm mid/neutral |
| Mechanical Trail | 53.2mm |
| Wheel Flop | 15.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 77.1mm |
| 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 | 1656.4mm |
| 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