
KTM 640 LC4 SM Supermoto
Key specifications
Overview
Introducing the 2004 KTM 640 LC4 SM Supermoto, a thrilling blend of performance and versatility that perfectly embodies the spirit of the supermoto genre. KTM has long been celebrated for its prowess in off-road and track motorcycles, and the 640 LC4 SM stands as a testament to the brand's commitment to delivering high-octane excitement in an agile package. With its lightweight chassis and powerful single-cylinder engine, this bike is tailored for both urban commutes and spirited backroad adventures, making it a favorite among enthusiasts looking for a dynamic ride. At the heart of the 640 LC4 SM is a robust 625cc single-cylinder, four-stroke engine that churns out an impressive 53.64 horsepower at 7000 RPM and a torque of 55 Nm at 5500 RPM. This powerplant not only delivers exhilarating acceleration but also ensures a thrilling ride whether you’re carving through city streets or tackling twisty mountain roads. The liquid-cooled engine, combined with a 5-speed gearbox, offers smooth and responsive shifting, allowing riders to experience the full range of its capabilities. The lightweight frame, weighing just 149 kg (328.5 pounds), pairs beautifully with the powerful engine, resulting in a power-to-weight ratio of 0.36 HP/kg that enhances agility and maneuverability. The 640 LC4 SM is equipped with several features that elevate its performance and rider experience. The chassis, constructed from chromium-molybdenum and power-coated, is both durable and lightweight, contributing to its nimble handling. The front and rear suspensions, courtesy of WP components, provide excellent stability and control, whether you’re navigating sharp corners or hitting rough patches. With a fuel capacity of 12 liters (3.17 gallons), this supermoto is designed for the long haul, ensuring you can enjoy your ride without frequent stops. And for those who appreciate aesthetics, the bike is available in striking color options of orange and black, making it as visually appealing as it is functionally superior. **
Pros
- Agile Handling: Lightweight design and responsive suspension make it ideal for quick maneuvers and spirited riding.
- Powerful Engine: A strong single-cylinder engine delivers impressive power and torque, ensuring exhilarating performance.
- Versatile Usage: Perfect for both urban commuting and off-road excursions, blending practicality with excitement.
Cons
- Seat Height: At 910 mm (35.8 inches), the seat height may pose a challenge for shorter riders.
- Limited Fuel Capacity: While the 12-liter tank is sufficient for spirited rides, it may require more frequent refueling on longer journeys.
- Single-Purpose Design: As a supermoto, its design may not cater to touring needs or extreme off-road conditions.
Technical details
Source specification data
- Make
- KTM
- Model
- 640 LC4 SM Supermoto
- Category
- Super motard
- Color Options
- Orange, black
- Power
- 53.64 HP (39.2 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
- 101.0 x 78.0 mm (4.0 x 3.1 inches)
- Compression
- 11.7:1
- Displacement
- 625.00 ccm (38.14 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, four-stroke
- 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)
- Overall Width
- 640 mm (25.2 inches)
- Overall Height
- 640 mm (25.2 inches)
- Ground Clearance
- 290 mm (11.4 inches)
- Power Weight Ratio
- 0.3600 HP/kg
- Alternate Seat Height
- 675 mm (26.6 inches) If adjustable, highest setting.
- Trail
- 63 mm (2.5 inches)
- Frame Type
- Chromium-molybdenum, power-coated
- Front Tyre
- 120/70-17
- Rear Brakes
- Single disc
- Front Brakes
- Single disc
- Rear Suspension
- WP - Monoshock
- Front Suspension
- WP-USD 48 MA
- Rear Brakes Diameter
- 220 mm (8.7 inches)
- Front Brakes Diameter
- 320 mm (12.6 inches)