KTM 640 LC4 SM Supermoto
2004Super Moto

KTM 640 LC4 SM Supermoto

Key specifications

Engine
625 cc
Power
54 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

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)

Available colors

Orangeblack