The KTM 125 Duke motorcycle specifications include a 125 cc (7.63 cu in) engine, power of 20.6 hp (15.0 kW) @ 10,500 rpm, and a listed weight of 128 kg (282.2 lb).
Key specifications
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2023Model years
125 ccDisplacement
20.6 hpPower
12.0 Nm @ 8,000 rpmTorque
128 kgWet weight
810 mmSeat height
11 LFuel tank
1,350 mmWheelbase
Model years covered
201120122013201420152016201720182019202020212023
Year-specific specification changes
The 2011 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
Bore × stroke
2012202358.0 x 47.2 mm (2.3 x 1.9 inches)
Final drive
20135/8 x 1/4 (520) O Ring. Primary drive: 22:72.
Frame
20122015Tubular space frame made from steel tubes, powder-coated
20162023Steel trellis frame, powder coated
Front brakes
2012Double disc. Two-pot brake caliper
2013Single disc. Two-piston calipers.
2014Single disc. Four-pot brake caliper
20152020Single disc. ABS. Four-pot brake caliper
20212023Single disc. ABS. Four-piston radial fixed calliper
Front suspension
20122014WP Suspension 4357
2015WP Suspension Up Side Down
20162020WP upside-down Ø 43 mm
20212023WP Apex Ø 43 mm
Fuel system
2015Carburettor
Power
201215 hp (10.9 kW)
201314.8 hp (10.8 kW)
2014201615 hp (10.9 kW)
202115 hp (10.9 kW)
Rear brakes
2012Single disc. One-pot brake caliper, floating brake discs
2013Single disc. Floating disc. Single-piston caliper.
2014Single disc. One-pot brake caliper, floating brake
20152020Single disc. ABS. One-pot brake caliper, floating brake
20212023Single disc. ABS. Single-piston floating calliper
Rear suspension
20122014WP Suspension 4618 EM
2015WP Suspension Monoshock
20162020WP Monoshock
20212023WP Apex Monoshock
Torque
2020202312.0 Nm (1.2 kgf-m or 8.9 ft.lbs)
Wheelbase
201220161,361 mm (53.6 inches)
201720231,357 mm (53.4 inches)
Clutch
20122015Wet multi-disc clutch / hydraulically operated
20162023Wet multi-disc clutch, mechanically actuated
Fuel capacity
201310.50 L (2.77 US gal)
2017202313.40 L (3.54 US gal)
Ground clearance
20122016170 mm (6.7 inches)
20202023175 mm (6.9 inches)
Ignition
20122023Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
Lubrication
20122015Forced oil lubrication with 2 Eaton pumps
Rake
201724.0°
Seat height
20152016800 mm (31.5 inches)
20172023830 mm (32.7 inches)
Mechanical overview
Engine layout snapshot
Single cylinder, four-stroke • 125 cc • Liquid cooled • 20.6 hp
Chassis snapshot
Wheelbase 1,350 mmSeat 810 mmClearance 185 mm
Chain (final drive)
Additional useful specifications
| Power-to-weight ratio | 0.161 hp/kg |
|---|---|
| Power-to-weight | 160.9 hp/tonne |
| Specific power | 164.8 hp/L |
| Bore/stroke ratio | 1.23:1 (Oversquare) |
Model information
| Category | Naked bike |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 125 cc (7.63 cu in) |
| Power | 20.6 hp (15.0 kW) @ 10,500 rpm |
| Torque | 12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) @ 8,000 rpm |
| Bore × stroke | 58.0 x 47 mm (2.3 x 1.9 inches) |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | Digital CDI |
| Starter | Electric |
| Lubrication | Wet sump |
Transmission and drivetrain
| Final drive | Chain (final drive) |
|---|---|
| Clutch | Wet, multiple discs, cable operated |
Chassis and suspension
| Frame | Composite, Trellis |
|---|---|
| Front suspension | Cartrideg fork |
| Rear suspension | Single shock |
| Rake | 25.0° |
| Trail | 100 mm (3.9 inches) |
Brakes, wheels and tires
| Front brakes | Double disc |
|---|---|
| Rear brakes | Single disc |
Dimensions and weight
| Wet weight | 128 kg (282.2 lb) |
|---|---|
| Seat height | 810 mm (31.9 inches) |
| Wheelbase | 1,350 mm (53.1 inches) |
| Ground clearance | 185 mm (7.3 inches) |
Fuel and emissions
| Fuel capacity | 11.00 L (2.91 US gal) |
|---|
Other specifications
| Color options | Orange/black |
|---|---|
| Seat | 2-person seat |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from KTM models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official KTM information before relying on them. Visit the official KTM website.