2022 Soma Fabrications Jawbone A-Type
- Category
- Off-road Touring
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Disc brake
Geometry
50 | 52 | 54 | 56 | 58 | 61 | 64 | |
Stack | 563mm | 582mm | 594mm | 623mm | 637mm | 652mm | 673mm |
Reach | 361mm | 369mm | 377mm | 379mm | 388mm | 401mm | 416mm |
Stack to Reach Ratio | 1.56:1 | 1.58:1 | 1.58:1 | 1.64:1 | 1.64:1 | 1.63:1 | 1.62:1 |
Seat Tube Length, C-T | 420mm | 450mm | 515mm | 525mm | 545mm | 580mm | 625mm |
Top Tube Length, Effective/Horizontal Center | 523mm | 539mm | 553mm | 569mm | 583mm | 600mm | 628mm |
Top Tube Slope | 18.5deg | 16.9deg | 10.8deg | 12.8deg | 12deg | 9.7deg | 7.3deg |
Head Tube Angle | 70deg | 70.5deg | 70.5deg | 70.5deg | 71deg | 71.5deg | 71.5deg |
Seat Tube Angle | 74deg | 73.8deg | 73.5deg | 73deg | 73deg | 73deg | 72.5deg |
Head Tube Length | 130mm | 142mm | 155mm | 185mm | 200mm | 210mm | 240mm |
Bottom Bracket Drop | 66mm | 66mm | 72mm | 72mm | 72mm | 72mm | 72mm |
Bottom Bracket Height | 281.9mm | 281.9mm | 294.9mm | 294.9mm | 294.9mm | 294.9mm | 294.9mm |
Chainstay Length | 445mm | 445mm | 445mm | 445mm | 445mm | 445mm | 445mm |
Chainstay Length Horizontal | 440.1mm | 440.1mm | 439.1mm | 439.1mm | 439.1mm | 439.1mm | 439.1mm |
Front-Center | 600mm | 608mm | 619mm | 633mm | 640mm | 660mm | 675mm |
Front-Center Horizontal | 595.9mm | 601.9mm | 616.9mm | 626.9mm | 634.9mm | 648.9mm | 672.9mm |
Wheelbase | 1036mm | 1042mm | 1056mm | 1066mm | 1074mm | 1088mm | 1112mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm |
Fork Length (Axle-To-Crown) | 420mm | 420mm | 420mm | 420mm | 420mm | 420mm | 420mm |
Trail | 73.4mm high | 70.2mm high | 76.9mm high | 76.9mm high | 73.5mm high | 70mm high | 70mm high |
Mechanical Trail | 69mm | 66.1mm | 72.5mm | 72.5mm | 69.4mm | 66.4mm | 66.4mm |
Wheel Flop | 23.6mm | 22.1mm | 24.2mm | 24.2mm | 22.6mm | 21.1mm | 21.1mm |
Standover Height | 738mm | 758mm | 804mm | 827mm | 844mm | 864mm | 890mm |
Tire to Pedal Spindle | 82.1mm 170 mm cranks | 90.1mm 170 mm cranks | 82.1mm 170 mm cranks | 96.1mm 170 mm cranks | 103.1mm 170 mm cranks | 123.1mm 170 mm cranks | 138.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 111.9mm 170 mm cranks | 111.9mm 170 mm cranks | 124.9mm 170 mm cranks | 124.9mm 170 mm cranks | 124.9mm 170 mm cranks | 124.9mm 170 mm cranks | 124.9mm 170 mm cranks |
A-Type Build
50 | 52 | 54 | 56 | 58 | 61 | 64 | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.2in | 2.2in | 2.2in | 2.2in | 2.2in | 2.2in | 2.2in |
Tire Width Max | 2.5in | 2.5in | 2.25in | 2.25in | 2.25in | 2.25in | 2.25in |
Tire Outer Diameter | 695.8mm | 695.8mm | 733.8mm | 733.8mm | 733.8mm | 733.8mm | 733.8mm |
Bike Length with Tires | 1731.8mm | 1737.8mm | 1789.8mm | 1799.8mm | 1807.8mm | 1821.8mm | 1845.8mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Off-road TouringSource:https://www.somafab.com/wp-content/uploads/2022/10/soma_geochart_jawbone-A-my22.jpg