Model Description


THE SPAWN OF THE BEAST

The KTM 125 DUKE might only boast 125 cc, but rest assured – this machine is 125% DUKE! Built with the same NAKED ethos as its bigger brethren, the 2026 KTM 125 DUKE boasts a muscled-up attitude, an excellent suspension package, LED lights, riding tech, and street-ripping, turn-gripping aggression.

Now available at 4,599.00 GBP*, reduced from 4,899.00 GBP. *inc VAT, delivery to dealer, PDI, registration and 12 months Road Fund Licence

Graphics:
Premium looks come as standard on the KTM 125 DUKE. A high-quality, multi-layered, wet-painted finish in either Electronic Orange or Atlantic Blue with clear-gloss graphics perfectly set off the unique DUKE textured seat cover. Make no mistake, this is 100% DUKE with 110% street-cred.

Adjustability:
Finding that perfect balance when attacking your favorite stretch of tarmac, or sliding around some tight cone-marked corners is easy thanks to the KTM 125 DUKE's WP APEX Separate piston shock absorber and also be set for preload, white hand levers can be adjusted for reach.

TFT-DISPLAY:
Everything you need at a glance. The KTM 125 DUKE features a 5″ bonded glass TFT dashboard. This is paired with a switch cubeset that has 4-way menu switches that allow easy interaction with all vehicle functions – even smartphone connectivity. Speaking of which, all DUKE models are equipped with connectivity functions, allowing pilots to play music, take incoming calls, and get to where they are going with Turn-by-Turn navigation.

Bodywork:
Embracing its NAKED lineage, the KTM 125 DUKE has no shame in bearing it all. Casting an ever-impressive shadow, bristling with shark-like edges and visible air intakes, and painted headlight surround, the KTM 125 DUKE boasts an aggressive stance. A metal fuel tank, color-injected plastics, and LED lights complete the package.

LED Lighting:
Tearing a deep gash into the night, all KTM DUKE models come equipped with powerful LED lights in the front and at the rear. Not only do these work when the world becomes dark, but they also provide improved visibility when navigating busy traffic or misty road conditions.

Engine:
Boasting the latest generation in LC4c engines, the KTM 125 DUKE muscles up with more power, smoother acceleration, and light overall weight. Drawing from years of experience in the small engine game, the KTM 125 DUKE also features an the same improved gearbox, and a optimized cylinder head as found on the 2024 model.

Ride Modes:
The KTM 125 DUKE gives its riders a selection of RIDE MODES to best suit their riding style and environment. With STREET mode activated as standard, it delivers the perfect balance of performance and control for everyday riding, while TRACK mode sharpens the throttle response and traction settings for a more aggressive, performance-focused experience. Both modes can be easily selected via the TFT display.

Footpegs:
All-new, lightweight forged aluminum footpeg hangers and grippy footpegs ensure riders have uninterrupted grip when banging through the gears, with high-end CNC-machined footpegs available from the KTM PowerParts catalog.

Ergonomics:
Thanks to a long wheelbase, low seat height, and excellent frame geometry, the KTM DUKE range boasts class-leading cornering behavior, stability, and handling proficiency. This, along with an already sterling reputation as being THE SPAWN OF THE BEAST and an aggressive seating position, means the KTM 125 DUKE sets the standard when it comes to energetic NAKED machinery.

Seat:
Improved comfort for the rider and pillion, thanks to thick seat foam, a narrow profile, and an overall excellent performance in ergonomics. Need for more or less seat height? The KTM 125 DUKE has a standard seat height of 800 mm, but can easy be increased to 820 mm with the optional KTM PowerParts seat offering.

Brakes:
On the front wheel, the KTM 125 DUKE boasts a 320 mm brake disk with a four-piston radial calipers. The design includes bigger disks to reduce the operating temperature with improvements in the resistance to fading and longer pad lifespan. On the rear wheel, a 240 mm brake disk is installed with a single-piston caliper which carries the same benefits as the front wheel. Cornering ABS and SUPERMOTO ABS are also standard features.

Frame:
The design features a 2-piece construction composed of a steel trellis main frame with a pressure die-cast aluminum subframe. The rear shock absorber is mounted off-center to allow for the large airbox which allows for the lower seat height and, at the same time, adding to the DUKE's aggressive stance. Not only designed for looks, the primary objective of the frame design is to enhance vehicle dynamics by augmenting torsional rigidity, nimble agility, and enhanced feedback from the chassis.

Swingarm:
A curved cast aluminum swingarm provides a sturdy and durable platform for the rear suspension system, featuring a direct shock absorber mount that is offset to the side, for that super-racy look. This also creates additional space for the new exhaust muffler, providing added attitude.

Fork:
Upfront, a 43 mm WP APEX open cartridge fork with 150 mm travel keeps things in check, ensuring rock-solid performance on all street conditions.

Rear Shock:
On the rear, you'll find an off-center WP APEX Separate piston shock absorber with 150 mm of travel and 60 mm of stroke. The rear shock is also preload adjustable.

Wheels and Tires:
Reducing weight where it counts the most, the KTM 125 DUKE has made significant inroads at reducing unsprung mass thanks to a set of lightweight wheels and grippy tires. This not only improves the overall handling characteristics but also means quicker turn-in and less strain on working components like axels and bearings.

Premium Manufacturer’s Warranty:
This motorcycle comes with a PREMIUM MANUFACTURER'S WARRANTY. Riders enjoy up to 4 years of coverage; ride worry-free and experience the thrill of KTM with added peace of mind. To keep the warranty valid, regular services must be performed according to the service plan at an authorized KTM dealer. More information and details on how to benefit from this offer can be found on the KTM warranty page. Valid from Model Year 2025 onwards for all street legal motorcycles across the entire street range. Previously limited to selected models, the Premium Manufacturer's Warranty now covers the entire street range.

Model Specification


  • Frame

    Chain

    520 X-Ring

    Frame Design

    Steel trellis frame, powder coated

    Front Brake

    Four-piston radial fixed calliper, brake disc

    Front Brake Disc Diameter Imperial

    12.6 inch

    Front Brake Disc Diameter Metric

    320 mm

    Rear Brake

    Single-piston floating calliper

    Rear Brake Disc Diameter Imperial

    9.45 inch

    Rear Brake Disc Diameter Metric

    240 mm

    Rear Subframe Design

    Aluminium, powder-coated

    Steering Head Angle

    Trail

    Wheelbase

    1357 mm

    Front Brake Disc Diameter

    Rear Brake Disc Diameter

    Handlebar

    Tyre Height Front

    Tyre Height Rear

    Tyre Width Front

    Tyre Width Rear

    Brake Disc Diameters Front Rear

    Frame Material

    Subframe Tank

    Tyre Dimensions Front Rear

  • Engine

    CO2 Emissions

    57 g/km

    Cooling

    Liquid cooled

    Design

    1-cylinder, 4-stroke engine

    Displacement

    124.99 cm³

    Drive Type

    Combustion

    Ems

    Bosch EMS with RBW

    Engine Cylinder

    Single cylinder

    Engine Oil

    Motorex Formula 4T 15W/50

    Engine Stroke

    4-Stroke

    Power

    15 PS

    Torque

    11.5 Nm

    Transmission

    6-speed

    Silencer

    Clutch

    Clutch Primary Drive Teeth

    Fuel Mixture Generation

    Charger Line Voltage

    Charging Power

    Charging Time100

    Charging Time80

    Electric Motor

    Max Power

    Rated Output

    Traction Battery

    Max Motor Speed

    Silencer Material

    Silencer Type

    Primary Drive

    Clutch Operation

    Clutch Type

    Engine Addition

    Engine Oil Manufacturer

    Battery Capacity

    Secondary Gear Ratio

  • Suspension

    Front Suspension

    WP APEX 43

    Front Suspension Addition

    Open Cartridge

    Rear Suspension

    Rear Suspension Addition

    Preload adjuster

    Suspension Travel Front Imperial

    5.91 inch

    Suspension Travel Front Metric

    150 mm

    Suspension Travel Rear Imperial

    5.91 inch

    Suspension Travel Rear Metric

    150 mm

    Suspension Travel Front

    Suspension Travel Rear

    Rear Suspension Type

    Fork Offset

    Front Suspension Adjustment

    Rear Suspension Adjustment

    Front Suspension Type

  • Dimensions

    Ground Clearance

    Seat Height

    800 mm

    Tank Capacity Approx Imperial

    Tank Capacity Approx Metric

    Weight Fully Fueled

    154 kg

    Weight Without Fuel

    Wheels

    Tank Capacity Approx

    Wheelbase Tolerance

    Ground Clearance Imperial

    Ground Clearance Metric