The KTM 640 LC4 SM Supermoto motorcycle specifications include a 625 cc (38.14 cu in) engine, a 5-speed gearbox, and a listed weight of 149 kg (328.5 lb).
Key specifications
How the KTM 640 LC4 SM Supermoto compares
This compares the motorcycle with all KTM models in this specifications database. The blue marker is this model and the grey line is the KTM database average.
About 41% higher than the KTM database average. Around the 78th percentile across KTM models.
Very close to the KTM database average. Around the 46th percentile across KTM models.
About 14% larger than the KTM database average. Around the 75th percentile across KTM models.
KTM database percentile rankings
Percentiles show where this motorcycle sits across the KTM specifications database. They are descriptive database rankings, not performance ratings.
625 cc — larger displacement than about 78% of KTM models.
910 mm — taller than about 46% of KTM models.
12 L — larger than about 75% of KTM fuel tanks in this database.
Dimensions compared with KTM average
Each measurement is compared with the average value across KTM models where that dimension is available.
640
649
Close to average.
640
702
9% below average.
1,510
1,436
5% above average.
910
895
Close to average.
290
304
5% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 120/70-17 |
|---|---|
| Front tire width | 120 mm |
| Front tire aspect ratio | 70% |
| Front rim diameter | 17 in |
| Bore/stroke ratio | 1.29:1 (Oversquare) |
Model information
| Year released | 2004 |
|---|---|
| Category | Super motard |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 625 cc (38.14 cu in) |
| Torque | 55.0 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5,500 rpm |
| Bore × stroke | 101.0 x 78 mm (4.0 x 3.1 inches) |
| Compression ratio | 11.7:1 |
| Cooling system | Liquid |
| Fuel system | Carburettor |
| Fuel control | Overhead Cams (OHC) |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Frame | Chromium-molybdenum, power-coated |
|---|---|
| Front suspension | WP-USD 48 MA |
| Rear suspension | WP – Monoshock |
| Trail | 63 mm (2.5 inches) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 120/70-17 |
Dimensions and weight
| Dry weight | 149 kg (328.5 lb) |
|---|---|
| Seat height | 910 mm (35.8 inches) |
| Alternate seat height | 675 mm (26.6 inches) If adjustable, highest setting. |
| Overall width | 640 mm (25.2 inches) |
| Overall height | 640 mm (25.2 inches) |
| Wheelbase | 1,510 mm (59.4 inches) |
| Ground clearance | 290 mm (11.4 inches) |
Fuel and emissions
| Fuel capacity | 12.00 L (3.17 US gal) |
|---|
Performance
| Power/weight ratio | 0.3600 hp/kg |
|---|
Other specifications
| Color options | Orange, Black |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from KTM models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official KTM information before relying on them. Visit the official KTM website.