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KTM 125 Duke

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THE SPAWN OF THE BEAST

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The KTM 125 DUKE may be the entry-level bike of the range, but it isn't here to play games. It's built with the same attitude as the bigger bikes - and it shows. It's no holds barred with this urban warrior. This 4-stroke single cylinder has fuel-injection and a 6-speed transmission to deliver class-leading performance with low fuel consumption to keep you riding longer.

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    PHO_BIKE_PERS_REHI_125-duke-india-my23-right-rear_#SALL_#AEPI_#V1.png
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    PHO_BIKE_PERS_REVO_125-duke-india-my23-front-right_#SALL_#AEPI_#V1.png
    PHO_BIKE_90_LI_125-duke-india-my23_#SALL_#AEPI_#V1.png
The KTM 125 DUKE may be the entry-level bike of the range, but it isn't here to play games. It's built with the same attitude as the bigger bikes - and it shows. It's no holds barred with this urban warrior. This 4-stroke single cylinder has fuel-injection and a 6-speed transmission to deliver class-leading performance with low fuel consumption to keep you riding longer.

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  1. Engine & Exhaust
  2. Chassis
  3. Bodywork & Graphics
  4. Software & Electronics

01. Engine & Exhaust

A1 Power
A1 Power

Engine

The KTM 125 DUKE engine not only delivers arm-wrenching torque and hair-raising acceleration, but also good manners in everyday use, all with outstanding fuel economy. This lightweight, compact engine packs a good punch too, with a respectable 11 kW (15 hp). Thanks to the ingenious intake design and the meticulous fuel injection system, the KTM 125 DUKE is ready and waiting to tear-up the streets and the circuits alike.

Power & Torque

A bike as compact and nimble as this one, deserves to pack a solid punch. With 11 kW (15 hp) it is right for entry level enthusiasts. Thanks to the ingenious intake and exhaust system, the 33 mm throttle body and the meticulous fuel injection system, this strong stroker is ready to leave the rest of the city traffic behind at the twist of your wrist.

Cylinder head

Just like the KTM 1290 SUPER DUKE R, the four valves in the cylinder head of the KTM 125 DUKE are actuated by two overhead camshafts and ultra-hard, carbon coated cam followers. The result is an ultra-reliable, long-lasting engine that produces next-level power.

Injection

The intricate engine design, state-of-the-art injection electronics and close-ratio, 6-speed transmission not only help the KTM 125 DUKE to achieve white-knuckle performance, but also extremely low fuel consumption. At the same time, thanks to the regulated catalytic converter, it produces minimal emissions, even when riding at full throttle.  

Gritty growl
Gritty growl

Exhaust

The KTM 125 DUKE’s lightweight and precision-crafted exhaust system comprises of a side exhaust, link pipe and silencer. The three-chamber silencer has been positioned close to the bike’s overall center of gravity, improving balance and handling, whilst also delivering smooth, instant and beast-like power. Oh, and it looks angry as hell too.

A1 Power
A1 Power

Engine

The KTM 125 DUKE engine not only delivers arm-wrenching torque and hair-raising acceleration, but also good manners in everyday use, all with outstanding fuel economy. This lightweight, compact engine packs a good punch too, with a respectable 11 kW (15 hp). Thanks to the ingenious intake design and the meticulous fuel injection system, the KTM 125 DUKE is ready and waiting to tear-up the streets and the circuits alike.
A1 Power

Power & Torque

A bike as compact and nimble as this one, deserves to pack a solid punch. With 11 kW (15 hp) it is right for entry level enthusiasts. Thanks to the ingenious intake and exhaust system, the 33 mm throttle body and the meticulous fuel injection system, this strong stroker is ready to leave the rest of the city traffic behind at the twist of your wrist.

Cylinder head

Just like the KTM 1290 SUPER DUKE R, the four valves in the cylinder head of the KTM 125 DUKE are actuated by two overhead camshafts and ultra-hard, carbon coated cam followers. The result is an ultra-reliable, long-lasting engine that produces next-level power.

Injection

The intricate engine design, state-of-the-art injection electronics and close-ratio, 6-speed transmission not only help the KTM 125 DUKE to achieve white-knuckle performance, but also extremely low fuel consumption. At the same time, thanks to the regulated catalytic converter, it produces minimal emissions, even when riding at full throttle.  
Gritty growl
Gritty growl

Exhaust

The KTM 125 DUKE’s lightweight and precision-crafted exhaust system comprises of a side exhaust, link pipe and silencer. The three-chamber silencer has been positioned close to the bike’s overall center of gravity, improving balance and handling, whilst also delivering smooth, instant and beast-like power. Oh, and it looks angry as hell too.
Gritty growl

02. Chassis

Performance damping
Performance damping

Upside-down fork

The KTM 125 DUKE comes as standard with ultra-lightweight, high-performance upside-down WP forks. These forks not only perform above expectations when pushed to the limits, but are also nice and easy to maintain. This makes them perfect for all aspects of riding, from relaxed cruising to hammering around on closed circuits and everything in between.

Shock absorber

Thanks to its progressive 162 mm spring, the KTM 125 DUKE will perform in any environment you can throw at it. The preload is adjustable, so you can count on well-balanced suspension whether you’re riding solo or two-up, with or without luggage, on road or on track. The choice is yours.

Pro alloys
Pro alloys

Wheels

As light as they are stable, the 17-inch cast alloy racing wheels help you put the power down with confidence, utilizing a 110 mm wide tire at the front and an impressive 150 mm at the rear. Wrapped in premium rubber, the pro-spec tires will keep your KTM 125 DUKE glued to the road. They offer outstanding grip in both wet and dry conditions, as well as providing supreme durability, even for riders that know how to push tires to their absolute limits.

Stopping power
Stopping power

Brakes

A high-tech BYBRE braking system works in perfect harmony with the advanced ABS, providing riders with firm, controlled stopping power when they need it most. With a 300 mm brake disc on the front, paired with a 230 mm disc on the rear, the KTM 125 DUKE delivers exceptional pro-level stopping power, and you know what they say: "braking harder makes you faster!".

Superior range
Superior range

Fuel tank

The shapely 10.5 l fuel tank of the 125 Duke not only provides the rider with perfect knee contact, but also with a range of substantially more than 300 km even when ridden on the edge, thanks to the economic engine.

Performance damping
Performance damping

Upside-down fork

The KTM 125 DUKE comes as standard with ultra-lightweight, high-performance upside-down WP forks. These forks not only perform above expectations when pushed to the limits, but are also nice and easy to maintain. This makes them perfect for all aspects of riding, from relaxed cruising to hammering around on closed circuits and everything in between.
Performance damping

Shock absorber

Thanks to its progressive 162 mm spring, the KTM 125 DUKE will perform in any environment you can throw at it. The preload is adjustable, so you can count on well-balanced suspension whether you’re riding solo or two-up, with or without luggage, on road or on track. The choice is yours.
Pro alloys
Pro alloys

Wheels

As light as they are stable, the 17-inch cast alloy racing wheels help you put the power down with confidence, utilizing a 110 mm wide tire at the front and an impressive 150 mm at the rear. Wrapped in premium rubber, the pro-spec tires will keep your KTM 125 DUKE glued to the road. They offer outstanding grip in both wet and dry conditions, as well as providing supreme durability, even for riders that know how to push tires to their absolute limits.
Pro alloys
Stopping power
Stopping power

Brakes

A high-tech BYBRE braking system works in perfect harmony with the advanced ABS, providing riders with firm, controlled stopping power when they need it most. With a 300 mm brake disc on the front, paired with a 230 mm disc on the rear, the KTM 125 DUKE delivers exceptional pro-level stopping power, and you know what they say: "braking harder makes you faster!".
Stopping power
Superior range
Superior range

Fuel tank

The shapely 10.5 l fuel tank of the 125 Duke not only provides the rider with perfect knee contact, but also with a range of substantially more than 300 km even when ridden on the edge, thanks to the economic engine.
Superior range

03. Bodywork & Graphics

Pure BEAST style
Pure BEAST style

Design

At first you notice the headlight. That aggressive front. That predatory stance. When you come closer, you feel its steel fuel tank and multiple high-quality cast parts. In the end you realize that the design and production standards of this bike were set sky-high. Just like its big brother, the KTM 1290 SUPER DUKE R, the KTM 125 DUKE looks like a naked, angry, untamed little beast.

Dashboard

The KTM 125 DUKE has everything that distinguishes a genuine KTM from the high-quality chassis components to the multi-function cockpit, which even keeps you up to date with fuel consumption and remaining range. The extensive KTM PowerParts range gives you the option of adding your own individual style.

Pure BEAST style
Pure BEAST style

Design

At first you notice the headlight. That aggressive front. That predatory stance. When you come closer, you feel its steel fuel tank and multiple high-quality cast parts. In the end you realize that the design and production standards of this bike were set sky-high. Just like its big brother, the KTM 1290 SUPER DUKE R, the KTM 125 DUKE looks like a naked, angry, untamed little beast.
Pure BEAST style

Dashboard

The KTM 125 DUKE has everything that distinguishes a genuine KTM from the high-quality chassis components to the multi-function cockpit, which even keeps you up to date with fuel consumption and remaining range. The extensive KTM PowerParts range gives you the option of adding your own individual style.

04. Software & Electronics

ABS

Single circuit BOSCH ABS is standard equipment on the KTM 125 DUKE. Use it to your advantage to enhance control and safety.

ABS

Single circuit BOSCH ABS is standard equipment on the KTM 125 DUKE. Use it to your advantage to enhance control and safety.

Technical Details

Engine

  • Drive type Combustion
  • Torque 12 Nm
  • Transmission 6-speed
  • Cooling Liquid cooled
  • Starter Electric starter
  • Stroke 47.2 mm
  • Bore 58 mm
  • Clutch Wet multi-disc clutch, mechanically actuated
  • Compression ratio 12.8
  • Displacement 124.71 cm³
  • EMS Bosch EMS
  • Engine oil Motorex Formula 4T
  • Design 1-cylinder, 4-stroke engine
  • Fuel-mixture generation Bosch EFI (throttle valve 33 mm)
  • Lubrication Wet sump

Chassis

  • Tank capacity (approx.) 11 l
  • Wheelbase 1367 mm
  • ABS Bosch 10 ML Single Channel ABS
  • Front brake disc diameter 300 mm
  • Rear brake disc diameter 230 mm
  • Front brake Four-piston radial fixed calliper, brake disc
  • Rear brake Single-piston floating calliper, brake disc
  • Chain 520 X-Ring
  • dry weight 141.4 kg
  • Frame design Steel trellis frame, powder coated
  • Front suspension WP-USD, AER 43, Ø 43 mm
  • Ground clearance 155 mm
  • Handlebar Steel, tapered Ø 26/22 mm
  • Rear suspension WP monoshock
  • Seat height 822 mm
  • Seat height 822 mm
  • Silencer Stainless steel primary and aluminium secondary silencer
  • Steering head angle 65 °
  • Rear subframe design Steel trellis frame, powder coated
  • Suspension travel (front) 140 mm
  • Suspension travel (rear) 162 mm
  • Wheels Cast aluminium wheels
  • Wheelbase tolerance 15 mm
  • Front wheel diameter 17 "
  • Rear wheel diameter 17 "
  • Front wheel width 3 "
  • Rear wheel width 4 "