KTM Duke II 640
2001Super Moto

KTM Duke II 640

Key specifications

Engine
625 cc
Power
55 HP
Torque
58 Nm
Weight
145 kg
Fuel type
petrol
Fuel capacity
3.2 L
Transmission
5-speed
Seat height
34 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2001 KTM Duke II 640, a striking example of the super motard genre that perfectly balances agility with performance. This motorcycle was designed for those who crave the thrill of urban riding but also possess a penchant for tackling the rougher terrains. With its distinctive styling and aggressive stance, the Duke II commands attention on the road. KTM has carved a niche in the motorcycle market, and the Duke II is a testament to their commitment to creating versatile machines that appeal to both seasoned riders and newcomers alike. At the heart of the Duke II lies a robust 625cc single-cylinder, four-stroke engine, capable of churning out an impressive 55 HP at 7250 RPM. This powerplant delivers a torque of 58 Nm at 5500 RPM, ensuring exhilarating acceleration and a responsive throttle that makes city riding a breeze. With a top speed of 110 mph, the Duke II can hold its own against more conventional sport bikes. The 5-speed gearbox paired with a chain final drive provides seamless gear transitions, allowing riders to confidently navigate both tight corners and open highways. The well-balanced frame, combined with 140 mm of front suspension travel and 170 mm at the rear, offers an engaging riding experience that inspires confidence, whether you're carving through city streets or exploring winding backroads. The Duke II is equipped with features that enhance both performance and comfort. The single disc brakes—320 mm at the front and 220 mm at the rear—offer excellent stopping power, providing peace of mind when negotiating sharp turns or sudden stops. The motorcycle’s lightweight frame, tipping the scales at just 145 kg, contributes to its nimble handling characteristics. Additionally, the adjustable seat height of 860 mm ensures that riders of varying heights can find their ideal riding position. The carburettor fuel system, while somewhat old-school, provides a raw and engaging riding experience that many enthusiasts appreciate. **

Pros

  • Agile Handling: Lightweight and nimble, making it perfect for urban riding and twisty roads.
  • Strong Engine Performance: The single-cylinder engine delivers robust power and torque for exhilarating rides.
  • Distinctive Styling: Eye-catching design and aggressive stance that stands out in any crowd.

Cons

  • Limited Comfort for Long Rides: The sporty positioning may not be ideal for extended journeys.
  • Older Technology: The carburettor fuel system may not offer the efficiency or responsiveness of modern fuel injection systems.
  • Weight Distribution: Some riders may find the bike's weight distribution less favorable during aggressive cornering.

Technical details

Source specification data

Make
KTM
Model
Duke II 640
Category
Super motard
Power
55.00 HP (40.1 kW)) @ 7250 RPM
Torque
58.00 Nm (5.9 kgf-m or 42.8 ft.lbs) @ 5500 RPM
Gearbox
5-speed
Top Speed
177.0 km/h (110.0 mph)
Fuel System
Carburettor
Bore X Stroke
101.0 x 78.0 mm (4.0 x 3.1 inches)
Displacement
625.00 ccm (38.14 cubic inches)
Engine Details
Single cylinder, four-stroke
Valves Per Cylinder
4
Transmission Type Final Drive
Chain
Dry Weight
145.0 kg (319.7 pounds)
Seat Height
860 mm (33.9 inches) If adjustable, lowest setting.
Fuel Capacity
12.00 litres (3.17 gallons)
Power Weight Ratio
0.3793 HP/kg
Rear Tyre
160/60-HR17
Front Tyre
120/70-HR17
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Wheel Travel
170 mm (6.7 inches)
Front Wheel Travel
140 mm (5.5 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
320 mm (12.6 inches)