1975 Manufrance Hirondelle Base 57cm
Build
650B/27.5 in × 42 mm
Stack and Reach vs. Category Trend
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Geometry
| Stack | 565mm |
| Reach | 397mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 580mm |
| Top Tube Length, Effective/Horizontal Center | 570mm |
| Top Tube Length, Actual C-C | 570mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 139mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 274mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 430.8mm |
| Front-Center | 610mm |
| Front-Center Horizontal | 609.2mm |
| Wheelbase | 1040mm |
| Fork Offset/Rake | 55mm |
| Fork Length (Axle-To-Crown) | 385mm |
| Trail | 44.6mm low |
| Mechanical Trail | 42.7mm |
| Wheel Flop | 12.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 106mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 104mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 668mm |
| Bike Length with Tires | 1708mm |
| Crank Length | 170mm |
| Handlebar Width | 350mm |
| Stem Length | 70mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 5 ft 6 in to 5 ft 9 in |
Source:Personal Measurements