| MODEL | KTM 390 ADVENTURE R 2025 |
| Year | 2025 |
| Engine Type | Four stroke, single cylinder, DOHC with finger followers, 4 valves |
| Displacement / Capacity | 398.7 cc / 24.3 cu in |
| Bore X Stroke | 89 x 64 mm |
| Compression Ratio | 12.6:1 |
| Cooling System | Liquid cooled |
| Max Power | 44.3 hp / 33 kW @ 8500 rpm |
| Max Torque | 39 Nm / 28.7 lb-ft @ 7000 rpm |
| Ignition | — |
| Induction | Bosch fuel injection, 46 mm throttle body |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6 speed (primary drive 86:33) |
| Clutch | PASC power-assist slipper clutch, mechanically operated |
| Final Drive | Chain, 520 X-Ring |
| CHASSIS SPECS | |
| Frame | Two-piece steel trellis frame, powder coated, with bolt-on subframe |
| Front Suspension | 43 mm WP APEX 43, compression and rebound adjustable, 230 mm / 9.1 in travel |
| Rear Suspension | WP APEX split piston, rebound and preload adjustable, 230 mm / 9.1 in travel |
| Front Brakes | Single 320 mm disc, Bybre axial 2-piston caliper |
| Rear Brakes | Single 240 mm disc, Bybre 1-piston floating caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 870 mm / 34.3 in |
| Wheelbase | 1481 mm / 58.3 in |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 165 kg / 364 lbs |
| WHEEL SPECS | |
| Front Tyre | 90/90 x R21 M/C 54T M+S |
| Rear Tyre | 140/80 x R18 M/C 70T M+S |
| FUEL SYSTEM | |
| Fuel Capacity | 14 L / 3.7 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 390 Adventure R is the 2025 long-travel, off-road-oriented version of KTM's new 398.7 cc LC4c 390 Adventure range. It has 21-inch front and 18-inch rear spoked wheels, 230 mm of suspension travel at each end, adjustable WP APEX suspension and an aluminium handlebar. It shares the new two-piece steel trellis frame and slipper clutch with the cheaper X, which has cast wheels and a non-adjustable front fork.
