2013 Btwin Triban 3a 45
Build
650C × 21 mm
Insights
Very aggressive stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Btwin Triban
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 469mm |
| Reach | 372mm |
| Stack to Reach Ratio | 1.26:1 |
| Seat Tube Length, C-C | 380mm |
| Top Tube Length, Effective/Horizontal HT Top | 507mm |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 105mm |
| Bottom Bracket Drop | 37mm |
| Bottom Bracket Height | 269.5mm |
| Chainstay Length | 385mm |
| Chainstay Length Horizontal | 383.2mm |
| Front-Center | 560mm |
| Front-Center Horizontal | 558.8mm |
| Wheelbase | 942mm |
| Fork Offset/Rake | 41mm |
| Trail | 59.3mm mid/neutral |
| Mechanical Trail | 56.3mm |
| Wheel Flop | 17.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 83.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 99.5mm |
3a Build
| Wheel Size | 650C (571mm BSD) |
| Tire Width | 21mm |
| Tire Outer Diameter | 613mm |
| Bike Length with Tires | 1555mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://triban3owners.freeforums.net/thread/5105/triban-geometry