KTM 640 Duke II Red - Specifications & Review

640 Duke II Red

Article Complete Info

Articleid15186
CategorySuper motard
MakeKTM
Model640 Duke II Red
Year2005

Chassis, Suspension, Brakes & Wheels

FrametypeChromium-molybdenum, power-coated
FrontbrakesSingle disc
Frontbrakesdiameter320 mm (12.6 inches)
FrontsuspensionWP-USD 43 mm (1.89´
Fronttyre120/70-17
Rake26.5°
RearbrakesSingle disc
Rearbrakesdiameter220 mm (8.7 inches)
RearsuspensionWP - Monoshock
Reartyre160/70-17
Rearwheeltravel335 mm (13.2 inches)
Trail109 mm (4.3 inches)

Engine & Transmission

Borexstroke101.0 x 78.0 mm (4.0 x 3.1 inches)
ClutchWet multi-disc clutch, operated hydraulically
Compression11.7:1
CoolingsystemLiquid
Displacement625.00 ccm (38.14 cubic inches)
EnginedetailsSingle cylinder, four-stroke
FuelsystemCarburettor. Mikuni BST 40
Gearbox5-speed
IgnitionKokusan DC-CDI
LubricationsystemPressure lubrication with 2 Eaton pumps
Power53.64 HP (39.2 kW)) @ 6750 RPM
Torque60.00 Nm (6.1 kgf-m or 44.3 ft.lbs) @ 5000 RPM
TransmissiontypefinaldriveChain
Valvespercylinder4

Other Specifications

CommentsNot available in the USA.
StarterElectric & kick

Physical Measures & Capacities

Dryweight152.0 kg (335.1 pounds)
Fuelcapacity11.20 litres (2.96 gallons)
Groundclearance280 mm (11.0 inches)
Overallheight640 mm (25.2 inches)
Overallwidth640 mm (25.2 inches)
Powerweightratio0.3529 HP/kg
Seatheight900 mm (35.4 inches) If adjustable, lowest setting.

About KTM

Country of Origin: Austria
Founder: Hans Trunkenpolz (later joined by Ernst Kronreif)
Best Known For: Off-road/enduro supremacy, Dakar wins, Duke/RC streetbikes, and READY TO RACE ethos

Company History

KTM evolved from a postwar repair shop into a racing juggernaut by treating competition as R&D. Lightweight two-strokes made the brand a force in motocross and enduro; later four-strokes and advanced electronics cemented dominance. Dakar Rally victories showcased reliability under extreme conditions and fed the Adventure lineup—bikes that balance long-travel composure with startling pace. On the street, the Duke and RC families brought razor geometry and punchy singles/twins to license tiers worldwide, while the 1290 Super Duke and Adventure pushed the IMU-aided edge of performance. Corporate agility—acquisitions, platform sharing with Husqvarna/GASGAS—expanded reach without blurring identity. Historically, KTM changed expectations for chassis feedback and electronics integration in dirt and on road, proving that orange-painted ferocity could also be precise. The brand’s throughline is simple: build light, communicate grip, and let riders go fast safely. Few companies have turned a color and a slogan into such a reliable proxy for results.

Other Years

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