1975 Manufrance Hirondelle Base

Category
Low-trail
Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Rim brake
Somewhat aggressive stack and reachvs category

Geometry

57cm
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
106mm
170 mm cranks
Pedal Spindle to Ground Clearance
104mm
170 mm cranks

Base Build

57cm
Wheel Size
650B/27.5 in
584 mm BSD
Tire Width
42mm
Tire Width Max
44mm
Tire Outer Diameter
668mm
Bike Length with Tires
1708mm
Crank Length
170mm
Handlebar Width
350mm
Stem Length
70mm

Published Sizing Recommendations

Height
5 ft 6 in
to
5 ft 9 in

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 Scale
Category Trend
Low-trail
Source:Personal Measurements