KTM 640 LC4 Supercomp (1999) technical specifications
KTM 640 LC4 Supercomp is produced in 1999. Engine is Four stroke, single Cylinder. SOHC, 4 valves, engine balancer, displacement 624.6 cc / 38.1 cu in , produces power 40.1 kW / 55 hp @ 7000 rpm and 55 Nm / 5.6 kgf-m / 40.6 lb-ft @ 5500 rpm. KTM 640 LC4 Supercomp weighs 149 kg / 328 lbs. KTM 640 LC4 Supercomp has 3 photos.
Technical specifications
+ Add to 'Compare list'| Model: | 640 LC4 Supercomp |
| Years: | 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: | 62o |
| 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 |
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