| Attribute | Value |
| General |
| Production from | 2012 year |
| Make | BamX |
| Model | BamX BX400-U4 Sierra |
| Category | ATV |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor |
| Engine details | Add |
| Displacement | 387 cm³ |
| Power | 13.9 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Oil & air |
| Transmission type,final drive | Shaft drive (cardan) |
| Torque | 25 Nm |
| Bore | 83 mm |
| Stroke | 71.6 mm |
| Gearbox | Automatic |
| Greenhouse gases | Add |
| Fuel control | Add |
| Emission details | Add |
| Driveline | CVT Fully Automatic w/Reverse |
| Ignition | CDI |
| Clutch | Add |
| Lubrication system | Pressure/Splash |
| Compression | 9.5:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Double A-Arm |
| Rear suspension | Swing Arm |
| Front brakes | Double disc |
| Rear brakes | Single disc |
| Diameter | Add |
| Frame type | Add |
| Front tyre | 25/8-12 |
| Rear tyre | 25/10-12 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Electric |
| Color options | |
| Carrying capacity | Add |
| Light | 12V35W/35W x 2, 12V5W x 2 (front) |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,245 mm |
| Kerb weight | Add |
| Dry weight | 266 kg |
| Power/weight ratio | 0.0522 |
| Overall height | Add |
| Overall length | Add |
| Overall width | Add |
| Seat height | 864 mm |
| Alternate seat height | Add |
| Ground clearance | 254 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 | Add |
| Fuel capacity | 13.5 l |
| Oil capacity | 1.7 l |
| Width | Add |
| Height | Add |