| Attribute | Value |
| General |
| Production from | 2006 year |
| Make | Beta |
| Model | Beta Jonathan 350 |
| Category | Custom / cruiser |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | 4 |
| Fuel system | Carburettor. Mikuni BST 33 |
| Engine details | Add |
| Displacement | 349 cm³ |
| Power | Add |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Air |
| Transmission type,final drive | Add |
| Torque | Add |
| Bore | 79 mm |
| Stroke | 71.2 mm |
| Gearbox | 6-speed |
| Greenhouse gases | Add |
| Fuel control | Single Overhead Cams (SOHC) |
| Emission details | Add |
| Driveline | Add |
| Ignition | Add |
| Clutch | Wet multi-disc clutch |
| Lubrication system | Add |
| Compression | Add |
| Exhaust system | Add |
| Chassis |
| Front suspension | Hydraulic fork |
| Rear suspension | Monoshock with adjustable spring preload |
| Front brakes | Single disc |
| Rear brakes | Single disc |
| Diameter | 220 mm |
| Frame type | Steel |
| Front tyre | 120/80-16 |
| Rear tyre | 140/90-15 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | 120 mm |
| Rear wheel travel | 100 mm |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Add |
| Color options | Add |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,470 mm |
| Kerb weight | Add |
| Dry weight | 138 kg |
| Power/weight ratio | Add |
| Overall height | Add |
| Overall length | 2,170 mm |
| Overall width | 1,100 mm |
| Seat height | 740 mm |
| Alternate seat height | Add |
| Ground clearance | 240 mm |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | Add |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | 4 l |
| Fuel capacity | 19 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |