LC4-E 640 Enduro

2001 KTM LC4-E 640 Enduro Technical Analysis & Specification Breakdown

Engineered by KTM for the enduro - offroad motorcycle segment, the 2001 KTM LC4-E 640 Enduro features a 625 cc (38.1 cu in) single cylinder, four-stroke configuration. In factory specification, peak output is rated at 49 HP (35.8 kW) at 7,500 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 and chain final drive. With a specific output of 78.4 HP per liter and a 2,000 rpm working window between peak torque (5,500 rpm) and peak power (7,500 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 LC4-E 640 Enduro measures 136 kg (300 lbs) dry, translating to a power-to-weight ratio of 0.36 HP/kg (2.78 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 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 168 km/h (104 mph).