KTM 640 LC4 Supermoto
2003Super Moto

KTM 640 LC4 Supermoto

Key specifications

Engine
625 cc
Power
55 HP
Torque
55 Nm
Weight
149 kg
Fuel type
petrol
Fuel capacity
3.2 L
Transmission
5-speed
Seat height
36 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

### 2003 KTM 640 LC4 Supermoto: The Ultimate Urban Warrior Introducing the 2003 KTM 640 LC4 Supermoto, a thrilling blend of aggressive styling and high-performance engineering that redefined the supermoto category. With its roots firmly planted in off-road heritage, this bike is not just a tool for commuting; it’s a statement. Designed for riders who crave excitement in urban environments, the 640 LC4 Supermoto stands out with its distinctive orange and black aesthetics, embodying KTM's racing spirit while offering an unparalleled riding experience. Whether slicing through city traffic or tackling twisty back roads, this motorcycle promises a blend of agility, power, and pure adrenaline. At the heart of the 640 LC4 Supermoto lies a robust 625cc single-cylinder engine that pumps out an impressive 54.80 horsepower at 7,000 RPM and a torque of 55 Nm at 5,500 RPM. This engine’s responsive nature delivers exhilarating acceleration and a satisfying rush as you twist the throttle. The liquid-cooled, four-stroke powerplant ensures reliability and performance, while the 5-speed gearbox allows for seamless shifts as you navigate through varied terrains. The bike's lightweight frame—tipping the scales at just 149 kg—combined with a power-to-weight ratio of 0.3678 HP/kg, makes it incredibly nimble and easy to handle, enabling riders to exploit its full potential in urban settings and beyond. The 640 LC4 Supermoto is equipped with a host of features designed to enhance both performance and comfort. Its WP-USD front suspension offers 265mm of travel, ensuring superior handling when cornering aggressively, while the rear WP Monoshock provides 310mm of travel for a plush ride over bumps. Stopping power comes from a formidable 320mm front disc brake, complemented by a 220mm rear disc, providing the confidence needed for spirited rides. The bike's adjustable seat height of 910mm caters to a variety of riders, ensuring that even those with shorter inseams can enjoy the thrill of supermoto riding. With a fuel capacity of 12 liters, the 640 LC4 also promises to keep you on the road longer, making it an ideal companion for both daily commutes and weekend adventures. **

Pros

  • Lightweight and Agile: At 149 kg, the KTM 640 LC4 is incredibly nimble, allowing for quick changes in direction and responsive handling.
  • Powerful Engine: The single-cylinder engine provides strong torque and horsepower, delivering an exhilarating ride while remaining reliable.
  • High-Quality Suspension: With advanced WP suspension components, the bike offers excellent stability and comfort on various surfaces.

Cons

  • Limited Wind Protection: The supermoto design lacks significant wind protection, which may not be ideal for long highway rides.
  • Firm Seat: The seat, while adjustable, can feel firm over extended periods, potentially leading to discomfort on longer journeys.
  • Rider Position: The sporty seating position may not suit all riders, especially those seeking a more relaxed stance for everyday use.

Technical details

Source specification data

Make
KTM
Model
640 LC4 Supermoto
Category
Super motard
Power
54.80 HP (40.0 kW)) @ 7000 RPM
Torque
55.00 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500 RPM
Gearbox
5-speed
Fuel System
Carburettor
Bore X Stroke
102.0 x 80.0 mm (4.0 x 3.1 inches)
Compression
11.5:1
Displacement
625.00 ccm (38.14 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Valves Per Cylinder
4
Transmission Type Final Drive
Chain
Dry Weight
149.0 kg (328.5 pounds)
Seat Height
910 mm (35.8 inches) If adjustable, lowest setting.
Fuel Capacity
12.00 litres (3.17 gallons)
Ground Clearance
290 mm (11.4 inches)
Power Weight Ratio
0.3678 HP/kg
Reserve Fuel Capacity
2.50 litres (0.66 gallons)
Rear Tyre
160/60-17
Front Tyre
120/70-17
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
WP - Monoshock
Front Suspension
WP-USD 48 MA
Rear Wheel Travel
310 mm (12.2 inches)
Front Wheel Travel
265 mm (10.4 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
320 mm (12.6 inches)