
KTM 640 Duke II Red
Key specifications
Overview
Introducing the 2005 KTM 640 Duke II Red, a standout in the supermotard segment that blends the best of sport and street riding. This bike caters to enthusiasts who crave agility and performance in urban settings while still possessing the ruggedness to tackle twisty backroads. KTM has carved out a niche with the Duke II, appealing to those who seek a unique blend of style, power, and versatility. With its striking red finish and distinct styling, this model certainly turns heads, all while packing a punch in terms of engineering and handling. At the heart of the 640 Duke II is a robust 625cc single-cylinder, four-stroke engine that delivers a heart-pounding 53.64 horsepower at 6750 RPM. The torque output of 60 Nm at 5000 RPM ensures that acceleration is both swift and smooth, making it perfect for darting through city traffic or carving up mountain roads. The engine’s impressive compression ratio of 11.7:1 and its sophisticated Mikuni BST 40 carburettor fuel system work in harmony to provide a thrilling ride. Coupled with a lightweight chassis weighing just 152 kg (335.1 pounds) and a well-matched 5-speed gearbox, the Duke II offers an exhilarating power-to-weight ratio that promises a highly responsive and engaging riding experience. Technological advancements and thoughtful engineering are evident throughout the 640 Duke II. The frame is crafted from durable chromium-molybdenum and features a power-coated finish, ensuring both resilience and aesthetic appeal. The WP-USD 43 mm front suspension and WP monoshock rear suspension provide excellent handling and comfort, while the powerful braking system, equipped with a 320 mm front disc and a 220 mm rear disc, ensures confident stopping power. Notably, the bike also boasts both electric and kick-start options, adding to its versatility. Ground clearance of 280 mm allows for spirited riding over uneven terrain, while the seat height of 900 mm provides an accommodating riding position for most riders. **
Pros
- Lightweight & Agile: Weighing just 152 kg, the Duke II delivers exceptional maneuverability, making it a joy to ride through city streets and twisty roads.
- Powerful Single-Cylinder Engine: The 625cc engine offers impressive torque and horsepower, providing thrilling acceleration and responsiveness.
- Unique Style: With its striking red finish and distinctive design, the Duke II stands out in a crowd, appealing to riders who value aesthetics as much as performance.
Cons
- Not Available in the USA: Enthusiasts in the United States may find themselves unable to purchase this model, limiting its availability.
- Firm Suspension: While the WP suspension offers excellent handling, it may be too firm for some riders seeking a softer ride on rough roads.
- Single-Cylinder Vibration: The nature of the single-cylinder engine can lead to vibrations at higher RPMs, which may not be to everyone's liking during long rides.
Technical details
Source specification data
- Make
- KTM
- Model
- 640 Duke II Red
- Category
- Super motard
- Starter
- Electric & kick
- Comments
- Not available in the USA.
- Power
- 53.64 HP (39.2 kW)) @ 6750 RPM
- Clutch
- Wet multi-disc clutch, operated hydraulically
- Torque
- 60.00 Nm (6.1 kgf-m or 44.3 ft.lbs) @ 5000 RPM
- Gearbox
- 5-speed
- Ignition
- Kokusan DC-CDI
- Fuel System
- Carburettor. Mikuni BST 40
- Bore X Stroke
- 101.0 x 78.0 mm (4.0 x 3.1 inches)
- Compression
- 11.7:1
- Displacement
- 625.00 ccm (38.14 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, four-stroke
- Lubrication System
- Pressure lubrication with 2 Eaton pumps
- Valves Per Cylinder
- 4
- Transmission Type Final Drive
- Chain
- Dry Weight
- 152.0 kg (335.1 pounds)
- Seat Height
- 900 mm (35.4 inches) If adjustable, lowest setting.
- Fuel Capacity
- 11.20 litres (2.96 gallons)
- Overall Width
- 640 mm (25.2 inches)
- Overall Height
- 640 mm (25.2 inches)
- Ground Clearance
- 280 mm (11.0 inches)
- Power Weight Ratio
- 0.3529 HP/kg
- Rake
- 26.5°
- Trail
- 109 mm (4.3 inches)
- Rear Tyre
- 160/70-17
- Frame Type
- Chromium-molybdenum, power-coated
- Front Tyre
- 120/70-17
- Rear Brakes
- Single disc
- Front Brakes
- Single disc
- Rear Suspension
- WP - Monoshock
- Front Suspension
- WP-USD 43 mm (1.89´
- Rear Wheel Travel
- 335 mm (13.2 inches)
- Rear Brakes Diameter
- 220 mm (8.7 inches)
- Front Brakes Diameter
- 320 mm (12.6 inches)