2016 v.2 Soma Fabrications Grand Randonneur Base 55

Build

650B/27.5 in × 38 mm

Insights

Somewhat aggressive stack and reach vs trend of low-trail bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
565mm
Reach
392mm
Stack to Reach Ratio
1.44:1
Seat Tube Length, C-T
550mm
Top Tube Length, Effective/Horizontal Center
560mm
Top Tube Slope
3.9deg
Head Tube Angle
72.5deg
Seat Tube Angle
73.5deg
Head Tube Length
167mm
Bottom Bracket Drop
65mm
Bottom Bracket Height
265mm
Chainstay Length
425mm
Chainstay Length Horizontal
420mm
Front-Center
625mm
Front-Center Horizontal
622mm
Wheelbase
1042mm
Fork Offset/Rake
69mm
Trail
31.7mm
low
Mechanical Trail
30.2mm
Wheel Flop
9.1mm
Standover Height
792mm
Tire to Pedal Spindle Distance
With 170 mm cranks
125mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
95mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
38mm
Tire Outer Diameter
660mm
Bike Length with Tires
1702mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Source:http://www.somafab.com/archives/product/grand-randonneur-frame-set