2013 v.1 Soma Fabrications Grand Randonneur Base 49.5

Build

650B/27.5 in × 32 mm

Insights

Very aggressive stack and reach vs trend of low-trail bikes
Design deviates from other sizes of Soma Fabrications Grand Randonneur

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
514mm
Reach
385mm
Stack to Reach Ratio
1.34:1
Seat Tube Length, C-T
495mm
Top Tube Length, Effective/Horizontal Center
530mm
Top Tube Slope
4.1deg
Head Tube Angle
72deg
Seat Tube Angle
74.5deg
Head Tube Length
116mm
Bottom Bracket Drop
65mm
Bottom Bracket Height
259mm
Chainstay Length
425mm
Chainstay Length Horizontal
420mm
Front-Center
607mm
Front-Center Horizontal
604mm
Wheelbase
1024mm
Fork Offset/Rake
69mm
Trail
32.7mm
low
Mechanical Trail
31.1mm
Wheel Flop
9.6mm
Standover Height
703mm
Tire to Pedal Spindle Distance
With 170 mm cranks
113mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
89mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
32mm
Tire Outer Diameter
648mm
Bike Length with Tires
1672mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Source:http://somafab.blogspot.com/2013/06/soma-grand-randonneur-official-geometry.html