| MODEL | KTM 125 DUKE 2021 - 2023 |
| Year | 2021 - 2023 |
| Engine Type | Four-stroke, single cylinder, DOHC, 4 valves |
| Displacement / Capacity | 124.7 cc / 7.6 cu in |
| Bore X Stroke | 58 x 47.2 mm |
| Compression Ratio | 14.5:1 |
| Cooling System | Liquid cooled |
| Max Power | 11.3 kW / 15 hp @ 10,500 rpm |
| Max Torque | 12 Nm / 8.85 ft-lb @ 8,000 rpm |
| Ignition | Contactless, controlled, fully electronic, with digital ignition timing adjustment |
| Induction | Bosch electronic fuel injection |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6-speed |
| Clutch | Wet multi-disc, mechanically actuated |
| Final Drive | Chain 520 X-ring |
| CHASSIS SPECS | |
| Frame | Steel trellis frame, powder coated |
| Front Suspension | 43 mm WP APEX fork; 142 mm / 5.6 in travel |
| Rear Suspension | WP APEX monoshock; 150 mm / 5.9 in travel |
| Front Brakes | Single 300 mm disc, 4-piston radial fixed caliper |
| Rear Brakes | Single 230 mm disc, single-piston floating caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 830 mm / 32.7 in |
| Wheelbase | 1357 mm / 53.4 in |
| Ground Clearance | 175 mm / 6.8 in |
| Dry Weight | 139 kg / 306.4 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/70-17 |
| Rear Tyre | 150/60-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 13.4 litres / 3.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
Photo: Priwo, Public domain, via Wikimedia Commons
Photo: Priwo, Public domain, via Wikimedia Commons
A 125 Duke update with WP APEX suspension, a larger tank and a Supermoto-style ABS, while keeping the 124.7 cc fuel-injected single of the previous generation. It is pitched at learner riders as a sporty, good-looking naked bike. The chassis carries over from the 2017-2020 bikes with minor changes.
