The 2023 KTM RC 390 is a high-performance Supersports machine with its roots firmly planted on the race track. Featuring an impressive technology package, as well as race-derived styling, handling characteristics, and addictive power delivery, the KTM RC 390 is a real-world racer with undoubted pedigree.
| Torque: | 37 Nm |
| Transmission: | 6-speed |
| Battery capacity: | 8 Ah |
| Cooling: | Liquid cooled |
| Starter: | Electric starter |
| Stroke: | 60 mm |
| Bore: | 89 mm |
| Clutch: | PASC™ antihopping clutch, mechanically operated |
| CO2 emissions: | 81 g/km |
| Displacement: | 373 cm³ |
| EMS: | Bosch EMS with RBW |
| Design: | 1-cylinder, 4-stroke engine |
| Lubrication: | Wet sump |
| Battery voltage: | 12 V |
| Cylinder count: | 1 |
| Fuel-mixture generation: | Bosch EFI (throttle valve 46 mm) |
| Valve timing: | 4 V / DOHC |
| Cycle: | 4-stroke |
| Compression ratio: | 12.6 |
| Rear subframe design: | Steel trellis frame, powder coated |
| Tank capacity: | 13.7 l |
| ABS: | Bosch 9.1MP Two Channel ABS (Supermoto ABS) |
| Front brake disc diameter: | 320 mm |
| Rear brake disc diameter: | 230 mm |
| Front brake: | Four-piston radial fixed calliper, brake disc |
| Rear brake: | Single-piston floating calliper, brake disc |
| Chain: | 520 X-Ring |
| Frame design: | Steel trellis frame, powder coated |
| Front suspension: | WP APEX 43 |
| Rear suspension: | WP APEX - Monoshock |
| Seat height: | 824 mm |
| Ground clearance: | 158 mm |
| Steering head angle: | 66.5 ° |
| Weight (ready to race): | 155 kg |
| Handlebar: | Steel clip on handlebars |
| Wheels: | Cast aluminium wheels |
| Tyre width (rear): | 150 |
| Tyre width (front): | 110 |
| Silencer: | Stainless steel primary and aluminium secondary silencer |
