2019 Berthoud Cycles JM-19 Base 59

Build

650B/27.5 in × 38 mm

Insights

Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Berthoud Cycles JM-19

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
606mm
Reach
402mm
Stack to Reach Ratio
1.51:1
Seat Tube Length, C-C
590mm
Top Tube Length, Effective/Horizontal Center
600mm
Head Tube Angle
70.5deg
Seat Tube Angle
72deg
Bottom Bracket Drop
67mm
Bottom Bracket Height
263mm
Chainstay Length
430mm
Chainstay Length Horizontal
424.8mm
Front-Center
649.4mm
Front-Center Horizontal
645.9mm
Wheelbase
1070.7mm
Fork Offset/Rake
50mm
Trail
63.8mm
mid/​neutral
Mechanical Trail
60.2mm
Wheel Flop
20.1mm
Standover Height
851mm
Tire to Pedal Spindle Distance
With 170 mm cranks
149.4mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
93mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
38mm
Tire Outer Diameter
660mm
Bike Length with Tires
1730.7mm
Crank Length
170mm
Handlebar Width
420mm
Stem Length
110mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc
Source:http://www.gillesberthoud.fr/pret-a-rouler/index.php (+ Berthoud direct via Bike Insights)