1992 Koga Randonneur Extra Base 54 cm
Build
700C/29 in × 32 mm
Insights
Very aggressive stack and reach vs trend of endurance road bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 515.5mm |
| Reach | 386.8mm |
| Stack to Reach Ratio | 1.33:1 |
| Seat Tube Length, C-T | 540mm |
| Top Tube Length, Effective/Horizontal Center | 550mm |
| Top Tube Length, Actual C-C | 550mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 72.5deg |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 283mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 446mm |
| Front-Center | 596mm |
| Front-Center Horizontal | 593mm |
| Wheelbase | 1039mm |
| Fork Offset/Rake | 50mm |
| Trail | 62mm mid/neutral |
| Mechanical Trail | 58.8mm |
| Wheel Flop | 18.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 83mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 113mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 32mm |
| Tire Outer Diameter | 686mm |
| Bike Length with Tires | 1725mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://www.rennrad-news.de/forum/attachments/km-1992-techdat-randonneur-pdf.391063/