The KTM 640 LC4 Enduro is a motorcycle produced from 2005-2007. It has a four stroke, single cylinder engine with a capacity of 624.6 cc, and features liquid cooling and a Mikuni BST 40 carburetor. The bike has a maximum power output of 40.1 kW / 55 hp at 7000 rpm and a maximum torque of 55 Nm / 5.6 kgf-m / 40.6 lb-ft at 5500 rpm. It has a five speed transmission and a chain, O-ring final drive. The bike’s frame is made of central chrome-moly steel and has a steering head angle of 62°. The White Power Up Side Down 4357 MXMA fork provides the front suspension while the rear suspension is a central shock absorber with PRO-LEVER linkage to rear-swing-arm with needle bearing. The bike has a ground clearance of 310mm / 12.2 in and a seat height of 930 mm / 36.6 in. The wet weight of the bike is 158 kg / 348 lbs and has a fuel capacity of 12 L / 3.2 US gal / 2.6 Imp gal. The bike has a top speed of 168 km/h / 104 mph and a consumption average of 4.7 sec.
Technical specifications:
Make Model: KTM 640 LC4 Enduro
| Year | 2005 – 07 |
|---|---|
| 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 | 280 mm / 11.0 in |
| Rear Suspension | Central shock absorber (WP BAVP3612) with PRO-LEVER linkage to rear- swing-arm with needle bearing |
| Rear Wheel Travel | 320 mm / 12.6 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 | 140/80 – 18 |
| Steering Head Angle | 62o |
| Wheelbase | 1510 mm / 59.4 in |
| Ground Clearance | 310mm / 12.2 in |
| Seat Height | 930 mm / 36.6 in |
| Wet Weight | 158 kg / 348 lbs |
| GVWR | 350 / 773 lbs |
| Engine Oil Capacity | 2.1 L / 2.2 US qt / 1.8 Imp qt |
| Fuel Capacity | 12 L / 3.2 US gal / 2.6 Imp gal |
| Consumption Average | 4.7 sec |
| Top Speed | 168 km/h / 104 mph |
