1952 René Herse 650B Randonneuse Reynolds 531 587
Build
650B/27.5 in × 38 mm
Insights
Somewhat upright stack and reach vs trend of endurance road bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 593.3mm |
| Reach | 378.3mm |
| Stack to Reach Ratio | 1.57:1 |
| Seat Tube Length, C-C | 587mm |
| Top Tube Length, Effective/Horizontal Center | 565mm |
| Top Tube Length, Actual C-C | 565mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 72.5deg |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 262mm |
| Chainstay Length | 443mm |
| Chainstay Length Horizontal | 437.8mm |
| Front-Center | 626mm |
| Front-Center Horizontal | 622.3mm |
| Wheelbase | 1060mm |
| Fork Offset/Rake | 73mm |
| Trail | 24.6mm very low |
| Mechanical Trail | 23.5mm |
| Wheel Flop | 6.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 126mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 92mm |
Reynolds 531 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 38mm |
| Tire Outer Diameter | 660mm |
| Bike Length with Tires | 1720mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:Per Bicycle Quarterly #71, spring 2020