2004
KTM 640 LC4 SM Supermoto - Specifications & Review
Article Complete Info
| Articleid | 539378 |
|---|---|
| Category | Super motard |
| Make | KTM |
| Model | 640 LC4 SM Supermoto |
| Year | 2004 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Chromium-molybdenum, power-coated |
|---|---|
| Frontbrakes | Single disc |
| Frontbrakesdiameter | 320 mm (12.6 inches) |
| Frontsuspension | WP-USD 48 MA |
| Fronttyre | 120/70-17 |
| Rearbrakes | Single disc |
| Rearbrakesdiameter | 220 mm (8.7 inches) |
| Rearsuspension | WP - Monoshock |
| Trail | 63 mm (2.5 inches) |
Engine & Transmission
| Borexstroke | 101.0 x 78.0 mm (4.0 x 3.1 inches) |
|---|---|
| Compression | 11.7:1 |
| Coolingsystem | Liquid |
| Displacement | 625.00 ccm (38.14 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Fuelsystem | Carburettor |
| Gearbox | 5-speed |
| Power | 53.64 HP (39.2 kW)) @ 7000 RPM |
| Torque | 55.00 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500 RPM |
| Transmissiontypefinaldrive | Chain |
Other Specifications
| Coloroptions | Orange, black |
|---|
Physical Measures & Capacities
| Alternateseatheight | 675 mm (26.6 inches) If adjustable, highest setting. |
|---|---|
| Dryweight | 149.0 kg (328.5 pounds) |
| Fuelcapacity | 12.00 litres (3.17 gallons) |
| Groundclearance | 290 mm (11.4 inches) |
| Overallheight | 640 mm (25.2 inches) |
| Overallwidth | 640 mm (25.2 inches) |
| Powerweightratio | 0.3600 HP/kg |
| Seatheight | 910 mm (35.8 inches) If adjustable, lowest setting. |
About KTM
Country of Origin:
Austria
Founder:
Hans Trunkenpolz (later joined by Ernst Kronreif)
Best Known For:
Off-road/enduro supremacy, Dakar wins, Duke/RC streetbikes, and READY TO RACE ethos
Company History
KTM evolved from a postwar repair shop into a racing juggernaut by treating competition as R&D. Lightweight two-strokes made the brand a force in motocross and enduro; later four-strokes and advanced electronics cemented dominance. Dakar Rally victories showcased reliability under extreme conditions and fed the Adventure lineup—bikes that balance long-travel composure with startling pace. On the street, the Duke and RC families brought razor geometry and punchy singles/twins to license tiers worldwide, while the 1290 Super Duke and Adventure pushed the IMU-aided edge of performance. Corporate agility—acquisitions, platform sharing with Husqvarna/GASGAS—expanded reach without blurring identity. Historically, KTM changed expectations for chassis feedback and electronics integration in dirt and on road, proving that orange-painted ferocity could also be precise. The brand’s throughline is simple: build light, communicate grip, and let riders go fast safely. Few companies have turned a color and a slogan into such a reliable proxy for results.