| General |
| Comments | - | Balanced 50/50 weight distribution. |
| Year | 2021 | - |
| Colours | - | Icon Blue |
| Make Model | KTM 390 Duke | - |
| Dimensions |
| Ground Clearance (in.) | - | 6.3 inches |
| Ground Clearance (mm) | - | 160 mm |
| Seat Height | 830 mm / 32.7 in | 780 mm / 30.7 in. |
| Wheelbase | 1357 mm / 53.4 in | 1380 mm / 54.3 in. |
| Ground Clearance | 175 mm / 6.8 in | - |
| Height | - | 1140 mm / 44.9 in. |
| Length | - | 2090 mm / 82.3 in. |
| Width | - | 730 mm / 28.7 in. |
| Weights & Capacities |
| Oil Capacity (l) | - | 2.40 litres |
| Oil Capacity (Quarts) | - | 2.54 US quarts |
| Dry Weight | 149 kg / 328 lbs | - |
| Fuel Capacity | 13.4 Litres / 3.5 US gal | 14.00 litres / 3.70 US gallons |
| Wet Weight | - | 169.0 kg / 372.6 lbs |
| Performance |
| Max Power | 43.5 hp / 32 kW @ 9500 rpm | - |
| Max Torque | 37 Nm / 27.2 lb-ft @ 7000rpm | 29.5 Nm (3.0 kgf-m or 21.8 ft.lbs) @ 9000 Revolutions" |
| Engine |
| Displacement (cc) | - | 321.0 cc |
| CO2 | - | 88.2 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Displacement (ci) | - | 19.59 cubic inches |
| Bore x Stroke (in,) | - | 2.7 x 1.7 inches |
| Fuel Control | - | Double Overhead Cams/Twin Cam (DOHC) |
| Bore x Stroke (mm) | - | 68.0 x 44.1 mm |
| Engine Type | - | In-line four, four-stroke |
| Displacement | 373 cc / 22.7 cu-in | - |
| Engine Detail | Four stroke, single cylinder, DOHC with finger followers, 4 valves | - |
| Fuel System | - | Injection |
| Bore x Stroke | 89 x 60 mm | - |
| Compression Ratio | 12.6:1 | 11.2:1 |
| Cooling System | Liquid Cooled | - |
| Emissions | EURO5 | Euro 5 |
| Engine Lubrication | - | Wet sump |
| Fuel Consumption | - | 3.80 litres/100 km (26.3 km/l or 61.90 mpg) |
| Fuel Induction | Bosch Injection | - |
| Ignition | Bosch EMS with RBW | TCI |
| Lubrication | Wet sump | - |
| Starter | Electric | Electric |
| Valve System | - | 2 |
| Drivetrain |
| Clutch | Wet multi-disc clutch, hydraulically actuated | - |
| Final Drive | Chain 520-X Ring | Chain (final drive) |
| Gearbox | - | 6-speed |
| Primary Drive | - | Constant mesh |
| Transmission / Drive | 6 Speed | - |
| Chassis |
| Frame Type | Steel trellis frame, powder coated | Diamond |
| Suspension - Front | 43mm WP APEX 43 | 37mm KYB inverted front forks |
| Suspension - Rear | WP APEX - Monoshock | Swingarm |
| Rake | - | 25.0° |
| Steering Head Angle | 65° | - |
| Trail | - | 95 mm / 3.7 in. |
| Wheel Travel - Front | 142 mm / 5.6 in | 130 mm / 5.1 in. |
| Wheel Travel - Rear | 150 mm / 5.9 in | 125 mm / 4.9 in. |
| Electrical Systems |
| Instrumentation | - | Digital multi-function instruments |
| Lighting system | - | LED headlight |
| Wheels & Brakes |
| Brakes - Front | Single 320 mm disc, 4 piston radial fixed caliper | Single disc. Hydraulic. ABS. |
| Brakes - Rear | Single 230 mm disc, 1 piston floating caliper | Single disc. Hydraulic. ABS. |
| ABS | Bosch 9.1MP Two Channel ABS (Supermoto ABS) | - |
| Tyres - Front | 110/70 -17 | 110/70-R17 |
| Tyres - Rear | 150/60-17 | - |