KTM LC4 Supercomp

Make Model	KTM 640 LC4 Supercomp
Year	1999
Engine	Four stroke, single Cylinder. SOHC, 4 valves, engine balancer
Capacity	624.6 cc / 38.1 cu in
Bore x Stroke	101 x 78 mm
Compression Ratio	11.5:1
Cooling System	Liquid cooled
Lubrication	2 x Eaten oil pumps
Induction	Mikuni BST 40 carburetor
Ignition	Kokusan contactless DC-CDI ignition with advanced system
Starting	Electric & kick
Spark Plug	NGK DRBEACPR 8 E
Battery	12V 8Ah, maintenance free
Max Power	40.1 kW / 55 hp @ 7000 rpm
Max Torque	55 Nm / 5.6 kgf-m / 40.6 lb-ft @ 5500 rpm
Clutch	Multi-disc in oil bath
Transmission	5 Speed
Primary Drive Ratio	30:81, straight cut gears
Gear Ratios	1st 14:35 / 2nd 15:24 / 3rd 18:21 / 4th 20:19 / 5th 22:18
Final Drive Ratio	17:38
Final Drive	Chain, O-ring 5/8 x 1/4"
Frame	Central chrome-moly steel frame
Front Suspension	White Power – Up Side Down 4357 MXMA fork
Front Wheel Travel	275 mm / 10.8 in
Rear Suspension	Central shock absorber (WP BAVP3612) with PRO-LEVER linkage to rear- swing-arm with needle bearing
Rear Wheel Travel	300 mm / 11.8 in
Front Brakes	Single 300 mm disc, 4 piston caliper
Rear Brakes	Single 220 mm disc, 1 piston caliper
Front Tyre	90/90 - 21
Rear Tyre	130/80 - 18
Steering Head Angle	62^o
Wheelbase	1510 mm / 59.4 in
Ground Clearance	310mm / 12.2 in
Seat Height	925 mm / 36.4 in
Dry Weight	149 kg / 328 lbs
GVWR	350 / 773 lbs
Engine Oil Capacity	2.1 L / 2.2 US qt / 1.8 Imp qt
Fuel Capacity	11 L / 2.9 US gal / 2.3 Imp gal

KTM 640 LC4 Supercomp