2023 Soma Fabrications Jawbone A-Type Base 54
Build
700C/29 in × 47 mm
Insights
Average stack and reach vs trend of off-road touring bikes
Design deviates from other sizes of Soma Fabrications Jawbone A-Type
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 594mm |
| Reach | 377mm |
| Stack to Reach Ratio | 1.58:1 |
| Seat Tube Length, C-T | 515mm |
| Top Tube Length, Effective/Horizontal Center | 553mm |
| Top Tube Slope | 10.8deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 155mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 286mm |
| Chainstay Length | 445mm |
| Chainstay Length Horizontal | 439.1mm |
| Front-Center | 621.1mm |
| Front-Center Horizontal | 616.9mm |
| Wheelbase | 1056mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 420mm |
| Trail | 73.7mm high |
| Mechanical Trail | 69.5mm |
| Wheel Flop | 23.2mm |
| Standover Height | 804mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 93.1mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 116mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 47mm |
| Tire Outer Diameter | 716mm |
| Bike Length with Tires | 1772mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:https://www.somafab.com/archives/product/jawbone-frame-a-type