Naked Motorcycles
2025KTM 125 Duke
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The 2025 KTM 125 Duke is a sharp-looking 125cc naked bike for learner riders, styled like the larger Dukes. Its liquid-cooled 125cc four-stroke single makes 14.8 hp and 11.5 Nm through a six-speed gearbox and chain. An 800 mm seat, 154 kg wet weight and 13.4-litre tank make it a lively commuter.
- Capacity
- 125.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 128.0 kg
- Seat height
- 800 mm
- Power
- 14.8 HP (11.0 kW)
What’s new for the 2025 KTM 125 Duke
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Power | 15.0 HP (10.9 kW) | 14.8 HP (11.0 kW) |
| Torque | 12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) @ 8000 RPM | 11.5 Nm (1.2 kgf-m or 8.5 ft.lbs) @ 8000 RPM |
| Wet weight | 139.0 kg (306.4 pounds) | 154.0 kg (339.5 pounds) |
| Seat height | 830 mm (32.7 inches) | 800 mm (31.5 inches) |
| Front suspension | WP Apex Ø 43 mm | WP APEX 43 |
| Front brakes | Single disc. ABS. Four-piston radial fixed calliper | Four-piston radial fixed calliper, brake disc |
| Rear brakes | Single disc. ABS. Single-piston floating calliper | Single-piston floating calliper |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A nimble entry-level naked built for city commuting, learning throttle and cornering skills, and fun back-road blasts.
- Built for
- A sharp, playful single-cylinder streetfighter that punches above its 15 PS with aggressive KTM styling and eager, flickable handling.
- Not ideal for
- Not for riders wanting highway speed, two-up touring, or off-road duty; the modest 125cc output limits sustained fast cruising.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 125.0 ccm
- Power
- 14.8 HP (11.0 kW)
- Torque
- 11.5 Nm (1.2 kgf-m) @ 8000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1156 HP/kg (dry)
- Bore x stroke
- 58.0 x 47.2 mm
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, mechanically actuated
Dimensions & weight
- Wheelbase
- 1357 mm
- Seat height
- 800 mm
- Dry weight
- 128.0 kg
- Wet weight
- 154.0 kg
- Fuel capacity
- 13.40 litres
- Ground clearance
- 175 mm
Chassis & suspension
- Frame
- Steel trellis frame, powder coated
- Front suspension
- WP APEX 43
- Rear suspension
- WP Apex Monoshock
- Front wheel travel
- 150 mm
- Rear wheel travel
- 150 mm
- Rake (fork angle)
- 25.0°
- Trail
- 100 mm
Brakes & wheels
- Front brakes
- Four-piston radial fixed calliper, brake disc
- Front brakes diameter
- 320 mm
- Rear brakes
- Single-piston floating calliper
- Rear brakes diameter
- 240 mm
- Front tyre
- 110-17
- Rear tyre
- 150-17
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2011 | 2015 | 2019 | 2022 | 2025 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 125 kg | 127 kg | 128 kg | 128 kg | 128 kg | 128 kg |
| Seat height | 810 mm | 800 mm | 830 mm | 830 mm | 800 mm | 800 mm |
| Fuel capacity | 11 L | 11 L | 13.4 L | 13.4 L | 13.4 L | 13.4 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the KTM 125 Duke?
The 2025 KTM 125 Duke has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the KTM 125 Duke have?
The 2025 KTM 125 Duke has a Power of 14.8 HP (11.0 kW).
How many gears does the KTM 125 Duke have?
The 2025 KTM 125 Duke has a Gearbox of 6-speed.
What is the torque of the KTM 125 Duke?
The 2025 KTM 125 Duke has a Torque of 11.5 Nm (1.2 kgf-m or 8.5 ft.lbs) @ 8000 RPM.
How much does the KTM 125 Duke weigh?
The 2025 KTM 125 Duke has a Dry weight of 128.0 kg (282.2 pounds).
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