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KTM 640 LC4 Enduro
2006Off-road

KTM 640 LC4 Enduro

Key specifications

Engine
625 cc
Weight
148 kg
Fuel type
petrol
Fuel capacity
3.0 L
Transmission
5-speed
Seat height
36 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2006 KTM 640 LC4 Enduro, a masterclass in off-road capability and rugged versatility that has earned its place among the elite in the Enduro category. Designed for those who crave adventure, this motorcycle seamlessly marries race-ready performance with everyday usability, making it a popular choice for riders who demand nothing short of excellence. While it may not have made its way to the USA, the 640 LC4 Enduro has garnered a loyal following in other markets, appealing to enthusiasts who appreciate its unmatched ability to tackle various terrains with confidence. At the heart of the KTM 640 LC4 Enduro lies a robust 625cc single-cylinder, four-stroke engine, characterized by its impressive 11.7:1 compression ratio. This powerhouse produces exhilarating torque, delivering a thrilling ride whether you're navigating rocky trails or cruising through open fields. The combination of the Mikuni BST 40 carburetor and Kokusan DC-CDI ignition ensures a responsive throttle and smooth power delivery. Riders will appreciate the 5-speed gearbox that provides an engaging experience, allowing them to shift seamlessly between gears as they conquer steep inclines or dart through tight corners. With a weight of just 148 kg (326.3 pounds), the bike remains nimble and easy to handle, enhancing its off-road prowess. KTM has packed the 640 LC4 Enduro with advanced features and technology designed to elevate the riding experience. The central double-cradle frame of 25 CrMo4 steel provides exceptional rigidity while maintaining a lightweight profile. The WP suspension system—featuring 43 mm front forks with an impressive 300 mm of travel and a rear monoshock with 335 mm of travel—ensures that the bike can absorb the toughest bumps and obstacles without compromising comfort or stability. Additionally, the dual-disc braking system, with a 300 mm front disc and a 220 mm rear disc, offers precise stopping power, making it a reliable companion on both rugged trails and city streets. With an adjustable seat height of 910 mm (35.8 inches) and a fuel capacity of 11.20 liters (2.96 gallons), the bike is designed for long rides and challenging adventures. **

Pros

  • Exceptional Off-Road Capability: The combination of the lightweight frame, powerful engine, and advanced suspension allows for impressive performance on rugged terrain.
  • Versatile Riding Experience: The bike excels in various environments, from tight trails to open fields, making it ideal for adventure seekers.
  • Innovative Features: The electric and kick-start options provide convenience, while the advanced braking and suspension systems enhance safety and ride quality.

Cons

  • Limited Availability: The 640 LC4 Enduro is not available in the USA, making it a challenge for American enthusiasts to access this remarkable machine.
  • Height: With a seat height of 910 mm (35.8 inches), it may be less accessible for shorter riders, potentially affecting comfort and confidence on the bike.
  • Maintenance Requirements: The high-performance engine and components may require more frequent maintenance and care compared to more standard motorcycles.

Technical details

Source specification data

Make
KTM
Model
640 LC4 Enduro
Category
Enduro-offroad
Starter
Electric & kick
Comments
Not available in the USA.
Clutch
Wet multi-disc clutch, operated hydraulically
Gearbox
5-speed
Ignition
Kokusan DC-CDI
Fuel System
Carburettor. Mikuni BST 40
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
Exhaust System
Stainless steel
Lubrication System
Pressure lubrication with 2 Eaton pumps
Valves Per Cylinder
4
Dry Weight
148.0 kg (326.3 pounds)
Seat Height
910 mm (35.8 inches) If adjustable, lowest setting.
Fuel Capacity
11.20 litres (2.96 gallons)
Overall Width
640 mm (25.2 inches)
Ground Clearance
300 mm (11.8 inches)
Rake
28.0°
Trail
112 mm (4.4 inches)
Rear Tyre
140/80-18
Frame Type
Central double-cradle-type 25 CrMo4
Front Tyre
90/90-21
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
WP Monoshock with Pro Lever
Front Suspension
WP-USD 43 mm (1.89 inches)
Rear Wheel Travel
335 mm (13.2 inches)
Front Wheel Travel
300 mm (11.8 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
300 mm (11.8 inches)