The 2021 KTM 125 Duke is the perfect embodiment of KTM’s naked bike character, blending attitude, performance, and versatility in a compact and potent package. With a fuel-injected engine that pumps out 15 horsepower, this little bike packs a big punch, making it an ideal choice for young or new riders looking to experience the thrill of motorcycling.
Its agile chassis and low centralization make it a joy to handle, while the WP Suspension upside-down forks and adjustable preload shock ensure that it can tackle any road or riding style with confidence. And with features like dual-channel ABS, 17-inch cast alloy wheels, and a range of KTM PowerParts upgrades, the KTM 125 Duke is a bike that truly delivers.
Whether you’re cruising the city, escaping for the day, or pushing the limits with some spirited riding, the KTM 125 Duke is a bike that will put a smile on your face and a spring in your step – and it’s arguably the most aesthetic it’s ever been, with two stylish color schemes to choose from.
Key Specifications
Engine Type
Four stroke, single cylinder, DOHC, 4 valves
Engine Capacity
7.6 cubic inches / 124.7 cc
Max Power
11.3 kw / 15 hp
Max Torque
12 Nm / 8.85 ft-lb @ 8000 rpm
Fuel Tank Capacity
3.5 US gallons / 13.4 L
Seat Height
32.7 inches / 830 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
KTM 125 Duke
Year
2021
Engine
Engine Type
Four stroke, single cylinder, DOHC, 4 valves
Displacement
7.6 cubic inches / 124.7 cc
Bore x Stroke
58 x 47.2 mm
Compression Ratio
14.5:1
Max Horsepower
11.3 kw / 15 hp
Max Torque
12 Nm / 8.85 ft-lb @ 8000 rpm
Engine Management System
Bosch electronic fuel injection
Lubrication System
Wet sump
Cooling System
Liquid cooled
Performance
Top Speed
n/a
*n/a – information not provided by manufacturer
Transmission
Clutch
Wet multi-disc, mechanically actuated
Gearbox
6 Speed
Final Drive
Chain 520 X-ring
Electrical & Electronics System
Starter
Electric
ABS
Bosch 9.1 MB Two Channel ABS (Supermoto ABS)
Chassis & Suspension
Frame Type
Steel trellis frame, powder coated
Front Suspension
43 mm WP APEX
Front Suspension Travel
5.6 inches / 142 mm
Rear Suspension
WP APEX – Monoshock
Rear Suspension Travel
5.9 inches / 150 mm
Trail
65
Wheels & Brakes
Front Tire Size
110/70 -17
Rear Tire Size
150/60 -17
Front Brakes
Single 300 mm disc, 4 piston radial fixed caliper
Rear Brakes
Single 230 mm disc, single piston floating caliper
ABS
Bosch 9.1 MB Two Channel ABS (Supermoto ABS)
Dimension & Weights
Seat Height
32.7 inches / 830 mm
Wheelbase
53.4 inches / 1357 mm
Ground Clearance
175 mm / 6.8 in
Fuel Tank Capacity
3.5 US gallons / 13.4 L
Dry Weight
139 kg / 306.4 lbs
Features
15 Hp (11kw) fuel injected engine
Euro5 ready
State-of-the-art injection electronics
Low fuel consumption (300km reach)
Agile chassis
Low centralization
WP Suspension upside-down forks
Adjustable preload shock
Dual channel ABS
300mm front disc brake
230mm rear disc brake
17 cast alloy wheels
BYBRE brakes
KTM PowerParts upgrades available
Two color schemes for 2021
Orange trellis frame
Sporty silencer profile
Know someone who’d find this useful? Share this page with a friend, your riding club or your favourite motorcycle community.
Explore our collection of KTM motorcycles for detailed specifications and model information. Or browse all motorcycle manufacturers.
*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
