
KTM 690 Duke
Key specifications
Overview
Introducing the 2009 KTM 690 Duke, a naked bike that perfectly embodies the essence of street versatility and spirited performance. With its edgy styling and striking orange color, the Duke stands out in the crowded motorcycle marketplace, appealing primarily to urban riders and enthusiasts looking for a blend of agility and power. This model, part of KTM's renowned Duke lineup, was crafted for those who crave the thrill of the ride while enjoying the comfort and ease of handling that come with a lightweight motorcycle. At the heart of the 690 Duke is its potent 654cc single-cylinder, four-stroke engine, engineered to deliver an exhilarating ride. Producing a robust 64.36 horsepower at 7,500 RPM and an impressive torque of 67 Nm at 5,500 RPM, this motorcycle excels in acceleration and responsiveness. The liquid-cooled engine, combined with a sophisticated Keihin EFI fuel system and a 6-speed gearbox, ensures smooth power delivery and effortless gear shifts. Riders will appreciate the bike's nimble handling, thanks to its lightweight design at just 148.5 kg (327.4 pounds) and a power-to-weight ratio of 0.4334 HP/kg, making it a joy to navigate through city streets and twisty backroads alike. The 2009 Duke is equipped with a sturdy chromium-molybdenum trellis frame, which not only enhances its aesthetic appeal but also contributes to its exceptional handling. The WP USD front suspension and WP mono shock with
Pros
- Lightweight and Agile: Weighing just 148.5 kg, the Duke offers excellent maneuverability, making it ideal for urban riding and spirited cornering.
- Powerful Engine: The 654cc engine is both responsive and robust, providing a thrilling ride and impressive acceleration.
- Distinctive Design: The trellis frame and vibrant color options create a visually striking motorcycle that turns heads wherever it goes.
Cons
- Single-Cylinder Vibration: The single-cylinder design can lead to noticeable vibrations at higher RPMs, which may affect comfort on longer rides.
- Limited Passenger Comfort: With a seat height of 865 mm and a focus on solo riding, the Duke may not be ideal for two-up riding or for shorter riders.
- Minimal Wind Protection: As a naked bike, it lacks fairings, which means riders may experience more wind resistance at highway speeds.
Technical details
Source specification data
- Make
- KTM
- Model
- 690 Duke
- Category
- Naked bike
- Starter
- Electric
- Color Options
- Orange, white, black
- Power
- 64.36 HP (47.0 kW)) @ 7500 RPM
- Clutch
- APTC Wet multi-disc clutch, operated hydraulically
- Torque
- 67.00 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 5500 RPM
- Gearbox
- 6-speed
- Fuel System
- Injection
- .
- I
- with
- Bore X Stroke
- 102.0 x 80.0 mm (4.0 x 3.1 inches)
- Compression
- 11.8:1
- Displacement
- 654.00 ccm (39.91 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, four-stroke
- Exhaust System
- Stainless steel underfloor silencer with integrated catalytic converter
- Lubrication System
- Pressure lubrication with 2 Eaton pumps
- Valves Per Cylinder
- 4
- Dry Weight
- 148.5 kg (327.4 pounds)
- Seat Height
- 865 mm (34.1 inches) If adjustable, lowest setting.
- Fuel Capacity
- 13.50 litres (3.57 gallons)
- Ground Clearance
- 155 mm (6.1 inches)
- Power Weight Ratio
- 0.4334 HP/kg
- Rear Tyre
- 160/60-17
- Frame Type
- Chromium
- -
- Molybdenum
- trellis frame, powder coated.
- Aluminium
- 7020 subframe.
- Front Tyre
- 120/70-17
- Rear Brakes
- Single disc
- Front Brakes
- Single disc
- Rear Suspension
- WP mono shock with Pro-Lever linkage
- Front Suspension
- WP USD
- Rear Wheel Travel
- 140 mm (5.5 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)