The KTM 640 LC4 Adventure motorcycle was produced between 2005 and 2007. It has a liquid-cooled, four-stroke, single-cylinder engine with a capacity of 624.6cc and a compression ratio of 11.0:1. The bike has both kick and electric starting, and can achieve a maximum power output of 35.7 kW at 7500 rpm, with a maximum torque of 52 Nm at 5500 rpm. The clutch is wet and multiplate, and the bike has a five-speed transmission with claw shifting. The final drive is via chain, and the motorcycle has a central chrome-moly-steel frame. Suspension is provided by 50 mm WP upside-down forks at the front and a WP monoshock at the rear. Braking is provided by single 300mm and 220mm discs at the front and rear, respectively, with 4-piston floating calipers. The bike has a ground clearance of 320mm, a seat height of 945mm, and a dry weight of 154kg. The fuel capacity of the KTM 640 LC4 Adventure is 28L, with an additional fuel reserve of 3.8L.
Technical specifications:
Make Model: KTM 640 LC4 Adventure
| 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 | 16:40 |
| Final Drive | Chain |
| Frame | Central chrome-moly-steel frame |
| Front Suspension | 50 mm WP upside-down forks |
| Front Wheel Travel | 300 mm / 11.8 in |
| Rear Suspension | WP monoshock |
| Rear Wheel Travel | 320 mm / 12.6 in |
| Front Brakes | Single 300mm disc, 4piston floating caliper |
| Rear Brakes | Single 220mm disc, 1 piston floating caliper |
| Front Tyre | 90/90 – 21 54S Enduro 3 |
| Rear Tyre | 140/80 – 18 70R Enduro 3 |
| Steering Head Angle | 62.5o |
| Wheelbase | 1510 mm / 59.4 in |
| Ground Clearance | 320 mm / 12.6 in |
| Seat Height | 945 mm / 37.2 in |
| Dry Weight | 154 kg / 340 lbs |
| GVWR | 380 kg / 839 lbs |
| Fuel Capacity | 28 L / 7.4 US gal / 6.2 Imp gal |
| Fuel Reserve | 3.8 L / 1.0 US gal / 0.8 Imp gal |
| Manual | blackbears.ru |
