KTM 690 Duke 2008 - Specifications & Review

690 Duke

Article Complete Info

Articleid604910
CategoryNaked bike
MakeKTM
Model690 Duke
Year2008

Chassis, Suspension, Brakes & Wheels

FrametypeChromium-Molybdenum trellis frame, powder-coated
FrontbrakesSingle disc
Frontbrakesdiameter320 mm (12.6 inches)
FrontsuspensionWP USD
Fronttyre120/70-17
Frontwheeltravel200 mm (7.9 inches)
RearbrakesSingle disc
Rearbrakesdiameter220 mm (8.7 inches)
RearsuspensionWP monoshock
Reartyre160/60-17
Rearwheeltravel210 mm (8.3 inches)

Engine & Transmission

Borexstroke102.0 x 80.0 mm (4.0 x 3.1 inches)
ClutchAPTC Wet multi-disc clutch, operated hydraulically
Compression11.8:1
CoolingsystemLiquid
Displacement654.00 ccm (39.91 cubic inches)
EnginedetailsSingle cylinder, four-stroke
ExhaustsystemStainless steel underfloor silencer with integrated catalytic converter
FuelsystemCarburettor
Gearbox6-speed
Ignition2 X keihin
LubricationsystemPressure lubrication with 2 Eaton pumps
Power64.36 HP (47.0 kW)) @ 7500 RPM
Torque67.00 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 5500 RPM
Valvespercylinder4

Other Specifications

StarterElectric

Physical Measures & Capacities

Dryweight148.5 kg (327.4 pounds)
Fuelcapacity13.50 litres (3.57 gallons)
Groundclearance155 mm (6.1 inches)
Powerweightratio0.4334 HP/kg
Seatheight865 mm (34.1 inches) If adjustable, lowest setting.

About KTM 690 Duke 2008

Introducing the 2008 KTM 690 Duke, a standout in the naked bike category that captures the spirit of urban riding and spirited weekend escapes. KTM, renowned for its commitment to performance and cutting-edge engineering, designed the 690 Duke to cater to riders who crave agility, responsiveness, and an unfiltered connection with the road. With its minimalist styling and aggressive stance, the 690 Duke isn’t just a motorcycle; it’s an invitation to embrace the thrill of the ride while navigating through bustling city streets or winding backroads.

At the heart of the 690 Duke lies a 654 ccm single-cylinder, four-stroke engine that packs a punch with 64.36 horsepower at 7,500 RPM and a torque output of 67 Nm at 5,500 RPM. This engine delivers exhilarating acceleration and a spirited performance, allowing riders to seamlessly blend power with control. The 6-speed gearbox enhances the riding experience, providing smooth transitions between gears. Coupled with a lightweight design of just 148.5 kg (327.4 pounds), the Duke boasts an impressive power-to-weight ratio of 0.4334 HP/kg, making it an agile performer that’s perfect for both spirited rides and everyday commuting.

KTM has equipped the 690 Duke with a variety of features that enhance its performance and rider comfort. The chromium-molybdenum trellis frame not only contributes to the bike's lightweight nature but also provides exceptional rigidity and handling prowess. The WP suspension components, with 200 mm of front travel and 210 mm in the rear, deliver a smooth ride over various terrains, allowing the rider to tackle corners with confidence. Additionally, the dual Keihin carburetors ensure optimal fuel delivery, while the electric starter simplifies the ignition process, making every ride as effortless as it is exhilarating.

Pros:

  1. Exceptional Power-to-Weight Ratio: The lightweight construction combined with powerful engine performance ensures quick acceleration and nimble handling.
  2. Agile Handling: The trellis frame and advanced suspension offer excellent stability and responsiveness, making it a joy to ride on twisty roads.
  3. Distinctive Design: The minimalist and aggressive aesthetics of the 690 Duke turn heads and reflect its performance-oriented character.

Cons:

  1. Comfort on Long Rides: The relatively high seat height and firm suspension may not provide the best comfort for extended journeys.
  2. Limited Fuel Capacity: With a fuel tank capacity of only 13.5 liters (3.57 gallons), longer rides may require more frequent refueling stops.
  3. Single-Cylinder Vibration: The character of the single-cylinder engine can lead to noticeable vibrations, particularly at higher RPMs, which may be less appealing to some riders.

In summary, the 2008 KTM 690 Duke is a compelling choice for enthusiasts seeking a raw and engaging riding experience. With its potent engine, lightweight chassis, and striking design, it stands out as a true contender in the naked bike segment, ready to deliver unforgettable rides for both seasoned and novice motorcyclists alike.

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