The KTM 620 Duke – a motorcycle that embodies the spirit of rebellion and unbridled excitement. With a 609cc single-cylinder engine that’s been bred for wheelies, stoppies, and rorty romps through the gearbox, this bike is not for the faint of heart.
Its ancestry can be traced back to the hybrid motocrossers used in the early-’80s “Superbikers” shows, where a mix of dirt and asphalt courses pushed riders to their limits. This DNA has been distilled into the Duke, a bike that’s been designed to deliver a raw, unfiltered riding experience.
Whether carving through twisties or launching into wheelies, the KTM 620 Duke is a force to be reckoned with. Its lightweight chassis and supermotard styling make it an agile and intimidating machine that demands respect from both rider and road.
Key Specifications
Engine Type
Four stroke, single cylinder, SOHC, 4 valves
Engine Capacity
609 cc / 37.2 cu in
Max Power
40.1 kw / 55 hp
Max Torque
60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm
Fuel Tank Capacity
2.7 US gallons / 10.3 L
Seat Height
35.2 inches / 894 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
KTM 620 Duke
Year
1995 – 96
Engine
Engine Type
Four stroke, single cylinder, SOHC, 4 valves
Displacement
609 cc / 37.2 cu in
Bore x Stroke
101 x 76 mm
Compression Ratio
10.4:1
Max Horsepower
40.1 kw / 55 hp
Max Torque
60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm
Engine Management System
Dell’Orto PHM 40 SD carburetor
Cooling System
Liquid cooled
Performance
Top Speed
169 km/h / 105 mph
*n/a – information not provided by manufacturer
Transmission
Gearbox
5 Speed
Final Drive
Chain
Electrical & Electronics System
Starter
Kick
Chassis & Suspension
Front Suspension
White Power 4054 Top Adjuster
Front Suspension Travel
5.6 inches / 142 mm
Rear Suspension
White Power monoshock 4681 BAVP Single Adjuster
Wheels & Brakes
Front Tire Size
120/70 – 17 Pirelli MT60
Rear Tire Size
160/60-17 Pirelli MT60
Front Brakes
Single 320 mm disc, 4 piston caliper
Rear Brakes
Single 220 mm disc, 1 piston caliper
Dimension & Weights
Seat Height
35.2 inches / 894 mm
Fuel Tank Capacity
2.7 US gallons / 10.3 L
Dry Weight
145 kg / 320 lbs
Features
609cc single-cylinder engine
Single-cylinder engine
3 things: wheelies, stoppies, and rorty romps through the gearbox
Half-dirt, half-asphalt course
Shortened suspensions
Roadracing front brakes
Tlat-track tires
Polished aluminum swingarm
3-gallon fuel tank
Black plastic fuel tank
Plastic shrouds with gray-on-black checkerboard pattern
Dark metallic-gray paint
Faux-fiber sidepanels and rear fender
Passenger grabrails on rear fender
Subfender/chain-guard on swingarm
40mm WP Roma fork
Roadrace-quality fork
Brembo four-piston caliper
Brakely severe stoppage
Twin headlights in fairing
Tachometer and speedometer in fairing
Ignition switch/fork lock in fairing
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*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