KTM 640 LC4Enduro (2003 – 2004)

KTM 640 LC4Enduro (2003 - 2004)

The KTM 640 LC4 Enduro is a testament to the Austrian manufacturer’s prowess in crafting versatile and thrilling motorcycles. Powered by a 640cc, four-stroke, single-cylinder engine with a SOHC, 4-valve configuration and engine balancer, this liquid-cooled beast delivers a unique riding experience. With its robust build and 149kg weight, the LC4 Enduro exudes a rugged charm that’s unmistakable in its category.

From its modern design to its impressive technical features, the LC4 Enduro is a culmination of refinement and innovation. The bike’s electric start, hydraulic clutch, and counterbalancers off the crank and camshaft contribute to its exceptional performance and handling. The 43mm USD forks and beefy Magura bars add to its commanding presence on the road.

Throwing a leg over the LC4 Enduro reveals its distinct character, with a seat that extends over the tank and a styling that blends seamlessly with its KTM MX and Enduro counterparts. As you take to the road, the bike’s quieter exhaust note belies its potent performance, which becomes apparent as you push beyond 120km/h. The LC4 Enduro truly comes alive in the curves, where its 300mm disc and Brembo caliper on the front handle ensure precise control and confidence-inspiring handling. The experience is nothing short of exhilarating.

Key Specifications

Engine TypeFour stroke, single Cylinder. SOHC, 4 valves, engine balancer
Engine Capacity624.6 cc / 38.1 cu in
Max Power40.1 kw / 55 hp
Max Torque55Nm / 5.6 kgf-m / 40.6 lb-ft @ 5500 rpm
Fuel Tank Capacity12L/ 3.2 US gal / 2.6 Imp gal
Seat Height36.6 inches / 930 mm
KTM 640 LC4Enduro (2003 - 2004)

All Specifications

Make & Model

ModelKTM 640 LC4Enduro
Year2003 – 2004

Engine

Engine TypeFour stroke, single Cylinder. SOHC, 4 valves, engine balancer
Displacement624.6 cc / 38.1 cu in
Bore x Stroke101 x 78 mm
Compression Ratio11.5:1
Max Horsepower40.1 kw / 55 hp
Max Torque55Nm / 5.6 kgf-m / 40.6 lb-ft @ 5500 rpm
Engine Management SystemMikuni BST 40 carburetor
Lubrication System2 x Eaten oil pumps
Cooling SystemLiquid cooled

Performance

Top Speed168 km/h / 104 mph

Transmission

ClutchMulti-disc in oil bath
Gearbox5 Speed
Primary Drive Ratio30:81, straight cut gears
Gear Ratios1st 14:35 / 2nd 15:24 / 3rd 18:21 / 4th 20:19 / 5th 22:18
Final DriveChain, O-ring 5/8 x 1/4″

Electrical & Electronics System

Battery12V 8Ah, maintenance free
StarterElectric & kick

Chassis & Suspension

Frame TypeCentral chrome-moly steel frame
Front SuspensionWhite Power Up Side Down 4357 MXMA fork
Rear SuspensionCentral shock absorber (WP BAVP3612) with PRO-LEVER linkage to rear- swing-arm with needle bearing
Trail62o

Wheels & Brakes

Front Tire Size90/90 -21
Rear Tire Size140/80 -18
Front BrakesSingle 300 mm disc, 4 piston caliper
Rear BrakesSingle 220 mm disc, 1 piston caliper

Dimension & Weights

Seat Height36.6 inches / 930 mm
Wheelbase59.4 inches / 1510 mm
Ground Clearance310mm / 12.2 in
Fuel Tank Capacity12L/ 3.2 US gal / 2.6 Imp gal

Features

  • Four-stroke, single-cylinder engine
  • SOHC, 4-valve design
  • Engine balancer
  • Electric start
  • Counterbalancers off the crank & camshaft
  • 43mm USD forks
  • Hydraulic clutch
  • Stronger clutch in ’04 & ’05 models
  • High-flow head in ’03 models
  • 300mm disc with Brembo caliper
  • WP rear shock
  • Big travel forks
  • 21-inch front wheel
  • Single, high-power delivery
  • Hydraulic clutch
  • Kick starter as backup
  • Steel silencer
  • 149 kg dry weight
  • Seat extending over the tank
  • Orange plastic styling

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