The KTM 640 LC4 Supermoto is a motorcycle produced from 2005 to 2007. The bike is powered by a liquid-cooled, four-stroke, single-cylinder engine with a capacity of 624.6cc and a compression ratio of 11.0:1. It has a kick and electric start and a maximum power output of 35.7 kW or 49 hp, and maximum torque of 52 Nm / 5.3 kgf-m / 38.4 lb-ft at 5500 rpm. The transmission is 5-speed with claw shift and a chain final drive. The frame is a central chrome-moly-steel frame, and the front suspension is a 43mm WP upside-down fork with 270mm of travel. The rear suspension is central shock absorber (WP) with PRO-LEVER linkage to rear-swingarm with needle bearing and has 300mm of travel. The front brakes consist of a single 320mm disc, four-piston floating caliper, and the rear brakes have a single 220mm disc with one-piston floating caliper. The motorcycle weighs 137kg or 302lbs and has a ground clearance of 335mm or 13.2in. The seat height is 915mm or 36.0in, and the fuel tank capacity is 11 L or 2.9 US gal / 2.4 Imp gal, with an additional 2.5 L or 2.6 US qt / 2.2 Imp qt of fuel reserve.
Technical specifications:
Make Model: KTM 640 LC4 Supermoto
| Year | 2005 – 07 |
|---|---|
| Engine | Four stroke, single Cylinder. SOHC, 4 Valve per cylinder, |
| Capacity | 624.6 cc / 38.1 cu in |
| Bore x Stroke | 101 x 78 mm |
| Compression Ratio | 11.0:1 |
| Cooling System | Liquid cooled |
| Induction | Mikuni BST 40 |
| Ignition | Contactless DC-CDI ignition with digital advanced system, KOKUSAN |
| Spark Plug | NGK DPR8 EA-9 |
| Battery | 12V 8Ah, maintenance free |
| Starting | Kick & electric |
| Max Power | 35.7 kW / 49 hp @ 7500 rpm |
| Max Torque | 52 Nm / 5.3 kgf-m / 38.4 lb-ft @ 5500 rpm |
| Clutch | Wet, multiplate |
| Transmission | 5 Speed, claw shifted |
| Primary Drive Ratio | 30:81 |
| Gear Ratios | 1st 14:35 / 2nd 15:24 / 3rd 18:21 / 4th 20:19 / 5th 22:18 |
| Final Drive Ratio | 17:42 |
| Final Drive | Chain 5/8 x 1/4″ O-ring |
| Frame | Central chrome-moly-steel frame |
| Front Suspension | 43 mm WP upside-down forks |
| Front Wheel Travel | 270 mm / 10.6 in |
| Rear Suspension | Central shock absorber (WP) with PRO-LEVER linkage to rear-swingarm with needle bearing |
| Rear Wheel Travel | 300 mm / 11.8 in |
| Front Brakes | Single 320 mm disc, 4piston floating caliper |
| Rear Brakes | Single 220 mm disc, 1 piston floating caliper |
| Front Tyre | 120/70 – 17 |
| Rear Tyre | 160/60 – 17 |
| Steering Head Angle | 62.5o |
| Wheelbase | 1510 mm / 59.4 in |
| Ground Clearance | 335 mm / 13.2 in |
| Seat Height | 915 mm / 36.0 in |
| Dry Weight | 137 kg / 302 lbs |
| GVWR | 350 kg / 773 lbs |
| Fuel Capacity | 11 L / 2.9 US gal / 2.4 Imp gal |
| Fuel Reserve | 2.5 L / 2.6 US qt / 2.2 Imp qt |
