2016 v.2 Soma Fabrications Grand Randonneur Base 61
Build
650B/27.5 in × 38 mm
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 613mm |
| Reach | 398mm |
| Stack to Reach Ratio | 1.54:1 |
| Seat Tube Length, C-T | 610mm |
| Top Tube Length, Effective/Horizontal Center | 590mm |
| Top Tube Slope | 3.1deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 215mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 265mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 420mm |
| Front-Center | 641mm |
| Front-Center Horizontal | 637mm |
| Wheelbase | 1057mm |
| Fork Offset/Rake | 69mm |
| Trail | 28.7mm very low |
| Mechanical Trail | 27.5mm |
| Wheel Flop | 8mm |
| Standover Height | 844.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 141mm |
| 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 | 1717mm |
| 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