Engineered by KTM for the enduro - offroad motorcycle segment, the 2000 KTM 640 LC4 Adventure R features a 625 cc (38.1 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 49 HP (35.8 kW) at 7,000 rpm while maximum torque reaches 52 Nm (38.4 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 78.4 HP per liter and a 1,500 rpm working window between peak torque (5,500 rpm) and peak power (7,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the 640 LC4 Adventure R measures 154 kg (340 lbs) dry, translating to a power-to-weight ratio of 0.32 HP/kg (3.14 kg per horsepower). Rider ergonomics and chassis geometry center around a 955 mm (37.6 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,510 mm (59.4 in) wheelbase engineered for balanced agility and highway composure. The 28-liter (7.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 165 km/h (103 mph).
Specific Output
78.4 HP/L
Power-to-Weight
0.32 HP/kg (3.14 kg/HP)
Power Band Window
5,500–7,000 rpm
Standover Height
955 mm (37.6 in)
Engine
Displacement625.0 ccm (38.14 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power49.0 HP (35.8 kW)) @ 7000 RPM
Torque52.0 Nm (5.3 kgf-m or 38.4 ft.lbs) @ 5500 RPM
CoolingLiquid
Transmission
Gearbox5-speed
Performance
Top Speed165.0 km/h (102.5 mph)
Chassis
Wheelbase1510 mm (59.4 inches)
Ground Clearance375 mm (14.8 inches)
Wheels & Brakes
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight154.0 kg (339.5 pounds)
Power/Weight0.3182 HP/kg
Seat Height955 mm (37.6 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
