KTM 640 LC4

KTM 640 LC4 Enduro

Make Model	KTM 640 LC4 Enduro
Year	2001
Engine	Liquid Cooled, four stroke, single cylinder. SOHC, 4 Valve per cylinder,
Capacity	625
Bore x Stroke	101.0 X 78.0mm
Compression Ratio	11.5:1
Induction	Mikuni BST 40
Ignition / Starting	Kokusan Electronic Digital,
Max Power	55 hp 40.1 kW @ 7000 rpm
Max Torque	55 Nm @ 5500 rpm
Transmission / Drive	5 Speed / chain
Front Suspension	48mm WP upside-down forks, 275mm wheel travel
Rear Suspension	WP monoshock, 280mm wheel travel
Front Brakes	Single 300mm disc 4 piston caliper
Rear Brakes	Single 220mm disc 1 piston caliper
Front Tyre	90/90 -21
Rear Tyre	140/80-16
Dry-Weight	154 kg
Fuel Capacity	12 Litres
Manual	glacoinc.brinkster.net / blackbears.ru / glacoinc.brinkster.net

TM's LC4 range includes three variations - a Supermoto-styled machine, an enduro spec competition bike and a Paris-Dakar replica desert racer. All three used the same single-cylinder four-stroke 609cc engine, but the latest versions use the uprated 625cc engine, confusingly called the 640 range. The Enduro follows a similar route to the firm's EXC range, with wire-spoked wheels wearing off-road tyres and a small Brembo front brake disc. The strong power delivery of the single-cylinder engine and the high-quality suspension and brakes is a devastating package in the hands of an experienced rider. A small fuel tank and constant vibration from the single-cylinder engine means the LC4 is rather impractical on the road.