1992 Koga Randonneur Extra Base
- Category
- Endurance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Rim brake
Geometry
50 cm | 54 cm | 57 cm | 60 cm | 63 cm | 66 cm | |
Stack | 477.1mm | 515.5mm | 555mm | 572.8mm | 601.4mm | 630mm |
Reach | 388.3mm | 386.8mm | 390mm | 399.1mm | 390.1mm | 381mm |
Stack to Reach Ratio | 1.23:1 | 1.33:1 | 1.42:1 | 1.44:1 | 1.54:1 | 1.65:1 |
Seat Tube Length, C-T | 500mm | 540mm | 570mm | 600mm | 630mm | 660mm |
Top Tube Length, Effective/Horizontal Center | 540mm | 550mm | — | 580mm | 580mm | 580mm |
Top Tube Length, Actual C-C | 540mm | 550mm | 565mm | 580mm | 580mm | 580mm |
Top Tube Slope | 0deg | 0deg | 1.2deg | 0deg | 0deg | 0deg |
Head Tube Angle | 70.5deg | 71.5deg | 72deg | 72deg | 72deg | 72deg |
Seat Tube Angle | 72.5deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg |
Head Tube Length | — | — | 125mm | — | — | — |
Bottom Bracket Drop | 40mm | 60mm | 65mm | 65mm | 65mm | 65mm |
Bottom Bracket Height | 303mm | 283mm | 278mm | 278mm | 278mm | 278mm |
Chainstay Length | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm |
Chainstay Length Horizontal | 448.2mm | 446mm | 445.3mm | 445.3mm | 445.3mm | 445.3mm |
Front-Center | 604mm | 596mm | 605mm | 620mm | 621mm | 621mm |
Front-Center Horizontal | 602.8mm | 593mm | 601.7mm | 616.7mm | 616.7mm | 617.7mm |
Wheelbase | 1051mm | 1039mm | 1047mm | 1062mm | 1062mm | 1063mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm |
Trail | 68.4mm high | 62mm mid/neutral | 58.9mm mid/neutral | 58.9mm mid/neutral | 58.9mm mid/neutral | 58.9mm mid/neutral |
Mechanical Trail | 64.5mm | 58.8mm | 56mm | 56mm | 56mm | 56mm |
Wheel Flop | 21.5mm | 18.7mm | 17.3mm | 17.3mm | 17.3mm | 17.3mm |
Tire to Pedal Spindle | 91mm 170 mm cranks | 83mm 170 mm cranks | 92mm 170 mm cranks | 107mm 170 mm cranks | 108mm 170 mm cranks | 108mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 133mm 170 mm cranks | 113mm 170 mm cranks | 108mm 170 mm cranks | 108mm 170 mm cranks | 108mm 170 mm cranks | 108mm 170 mm cranks |
Base Build
50 cm | 54 cm | 57 cm | 60 cm | 63 cm | 66 cm | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm |
Tire Width Max | 37mm | 37mm | 37mm | 37mm | 37mm | 37mm |
Tire Outer Diameter | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm |
Bike Length with Tires | 1737mm | 1725mm | 1733mm | 1748mm | 1748mm | 1749mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Endurance RoadSource:https://www.rennrad-news.de/forum/attachments/km-1992-techdat-randonneur-pdf.391063/