| General |
| Year | 2019 - 20 | 2026 |
| Make Model | KTM 125 Duke | KTM 990 RC-R |
| Dimensions |
| Seat Height | 818 mm / 32.2 in | 845 mm / 33.3 in |
| Wheelbase | 1357 mm / 53.4 in | 1481 mm / 58.3 in |
| Ground Clearance | 155 mm / 6.1 in | 163 mm / 6.4 in |
| Weights & Capacities |
| Wet Weight (kg) | - | 195 |
| Dry Weight (kg) | 141.4 | - |
| Dry Weight | 141.4 kg / 311.7 lbs | - |
| Fuel Capacity | 11 Litres / 3.0 US gal | 15.7 litres / 4.1 US gal |
| Wet Weight | - | 195 kg 430 lbs |
| Performance |
| Max Power | 11.3 kW / 15 hp @ 10500 rpm | 128.2 hp / 94.3 kW @ 9500 rpm |
| Max Torque | 12 Nm / 8.85 ft-lb @ 8000 rpm | 103 Nm / 75.9 lb-ft @ 6750 rpm |
| Engine |
| Displacement | 124.7 cc / 7.6 cu-in | 947 cc / 57.8 cu-in |
| Engine Detail | Four stroke, single cylinder, DOHC, 4 valves | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder |
| Bore x Stroke | 58 x 47.2 mm | 92.5 x 70.4 mm |
| Compression Ratio | 14.5:1 | 13.5:1 |
| Cooling System | Liquid cooled | Liquid cooled with water/oil heat exchanger |
| Emissions | EURO5 | EURO 5+ |
| Engine Management | - | Bosch EMS with RBW |
| Fuel Induction | Bosch electronic fuel injection | 46mm DKK Dellorto throttle body |
| Ignition | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment | - |
| Lubrication | Wet sump | Forced oil lubrication with 2 oil pumps |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Wet multi-disc, mechanically actuated | PASC slipper clutch, cable operated |
| Final Drive | Chain 520 X-ring | Chain 520 X-ring, 16:43 |
| Primary Drive | - | 42:76 |
| Transmission / Drive | 6 Speed | 6-Speed |
| Chassis |
| Frame Type | Steel trellis frame, powder coated | Chromium-Molybdenum-Steel frame using the engine as stressed element, powder coated |
| Suspension - Front | 43 mm WP-USD, AER 43 | WP APEX 48, open cartridge, compression & rebound (30 Clicks), preload (3 clicks) |
| Suspension - Rear | WP Monoshock | WP APEX - Monoshock, compression high-speed (3 turns) low-speed (30 clicks), rebound (30 clicks), preload (10 turns) |
| Steering Head Angle | 65° | - |
| Wheel Travel - Front | 140 mm / 5.5 in | 147 mm / 5.8 in |
| Wheel Travel - Rear | 162 mm / 6.4 in | 134 mm / 5.3 in |
| Wheels & Brakes |
| Brakes - Front | Single 300 mm disc, 4 piston radial fixed caliper | 2 x 320mm discs, radially mounted 4 piston caliper |
| Brakes - Rear | Single 230 mm disc, single piston floating caliper | Single 240 mm disc, single piston caliper |
| ABS | Bosch 10 ML Single Channel ABS | Standard |
| Tyres - Front | 110/70 -17 | 120/70-ZR 17 |
| Tyres - Rear | 150/60 -17 | 180/55-ZR 17 |
| Wheels | - | Cast aluminium |
| Wheels - Front | - | 3.5 x 17 |
| Wheels - Rear | - | 5.5 x 17 |