KTM 640 LC4Supermoto (1999 – 2000)

KTM 640 LC4Supermoto (1999 - 2000)

The KTM 640 LC4 Supermoto is a high-performance off-road motorcycle that effortlessly navigates the blurred lines between on-road and off-road riding. This versatile bike boasts a 640cc single-cylinder engine, delivering a potent 60 horsepower and 40 lb-ft of torque. The LC4’s engine is renowned for its punchy power delivery and instant response, making it an ideal choice for riders seeking an adrenaline-fueled experience.

The LC4 Supermoto’s 18-inch front wheel and 17-inch rear wheel configuration provides a unique blend of agility and stability, allowing riders to tackle a wide range of terrain with confidence. With its high-pipe exhaust system and fuel injection, the LC4 ensures a smooth and efficient ride.

The KTM 640 LC4 Supermoto is an uncompromising riding experience, engineered to deliver maximum thrills and minimal fuss.

Key Specifications

Engine TypeFour stroke, single Cylinder. SOHC, 4 Valve per cylinder,
Engine Capacity624.6 cc / 38.1 cu in
Max Power35.7 kw / 49 hp
Max Torque52 Nm / 5.3 kgf-m / 38.4 lb-ft @ 5500 rpm
Fuel Tank Capacity11L / 2.9 US gal / 2.4 Imp gal
Seat Height36.0 inches / 915 mm
KTM 640 LC4Supermoto (1999 - 2000)

All Specifications

Make & Model

ModelKTM 640 LC4Supermoto
Year1999 – 2000

Engine

Engine TypeFour stroke, single Cylinder. SOHC, 4 Valve per cylinder,
Displacement624.6 cc / 38.1 cu in
Bore x Stroke101 x 78 mm
Compression Ratio11.0:1
Max Horsepower35.7 kw / 49 hp
Max Torque52 Nm / 5.3 kgf-m / 38.4 lb-ft @ 5500 rpm
Engine Management SystemMikuni BST 40
Cooling SystemLiquid cooled

Performance

Top Speedn/a

Transmission

ClutchWet, multiplate
Gearbox5 Speed, claw shifted
Primary Drive Ratio30:81
Gear Ratios1st 14:35 / 2nd 15:24 / 3rd 18:21 / 4th 20:19 / 5th 22:18
Final DriveChain 5/8 x 1/4″ O-ring

Electrical & Electronics System

Battery12V 8Ah, maintenance free
StarterKick & electric

Chassis & Suspension

Frame TypeCentral chrome-moly-steel frame
Front Suspension43mm WP upside-down forks
Rear SuspensionCentral shock absorber (WP) with PRO-LEVER linkage to rear-swingarm with needle bearing
Trail62.5o

Wheels & Brakes

Front Tire Size120/70 – 17
Rear Tire Size160/60 – 17
Front BrakesSingle 320 mm disc, 4piston floating caliper
Rear BrakesSingle 220 mm disc, 1 piston floating caliper

Dimension & Weights

Seat Height36.0 inches / 915 mm
Wheelbase59.4 inches / 1510 mm
Ground Clearance335 mm / 13.2 in
Fuel Tank Capacity11L / 2.9 US gal / 2.4 Imp gal
Dry Weight137 kg / 302 lbs
KTM 640 LC4Supermoto (1999 - 2000)
KTM 640 LC4Supermoto (1999 - 2000)
KTM 640 LC4Supermoto (1999 - 2000)

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