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KTM 640 LC 4 Supermoto
2003
2003
The KTM 640 LC4 Supermoto from 2003 represents a significant model in KTM's history, embodying the fun and aggressive spirit of Supermoto riding. It comes from a line of LC4-powered KTMs that established the Austrian brand's reputation for robust and capable single-cylinder machines. This model directly competed with bikes like the Husqvarna SM 610, aiming to provide a raw and unfiltered riding experience.
At the heart of the 2003 KTM 640 LC4 Supermoto lies a 625.0 ccm engine (38.14 cubic inches). This single-cylinder powerplant generates a peak power output of 54.8 HP (40.0 kW) at 7000 RPM. More importantly for Supermoto riding, it produces a substantial 55.0 Nm (5.6 kgf-m or 40.6 ft.lbs) of torque at 5500 RPM, giving it strong acceleration out of corners. With a dry weight of 149.0 kg (328.5 pounds), the power-to-weight ratio makes for an engaging ride. The fuel tank holds 12.00 litres (3.17 US gallons), suitable for spirited rides or shorter commutes.
The 640 LC4 Supermoto favors an aggressive riding style. Its high 910 mm (35.8 inches) seat height contributes to excellent visibility and command of the road. The upright seating position gives the rider control for quick maneuvers. The suspension, though firm, is well-suited for absorbing bumps and maintaining composure during hard braking and cornering. While not designed for long-distance touring, it offers a reasonably comfortable experience for shorter rides and weekend blasts.
The KTM 640 LC4 Supermoto 2003 appeals to riders who value directness and a visceral connection to the machine. It is for those who enjoy the challenge of taming a powerful single-cylinder engine and appreciate the agility of a lightweight Supermoto. While it may not be the most practical choice for everyday commuting due to its firm suspension and tall seat, it provides a unique and rewarding riding experience that makes it a fun weekend machine.
✅ Why buy this bike?
• Exceptional handling and agility due to its lightweight chassis and supermoto-specific geometry, making it a blast on twisty roads. • Powerful and torquey 625cc single-cylinder engine delivers strong acceleration and punchy performance, ideal for aggressive riding. • High-quality WP suspension front and rear provides excellent damping and control, soaking up bumps and maintaining stability. • Brembo brakes offer exceptional stopping power and feel, inspiring confidence during hard braking maneuvers. • Relatively simple and robust engine design makes it easier to maintain and repair compared to more complex modern motorcycles. • Supermoto styling is aggressive and visually appealing, turning heads wherever you go.⚠️ Things to consider
• Vibrations from the large single-cylinder engine can be significant, leading to fatigue on longer rides. • The seat is notoriously uncomfortable, making extended journeys a pain, even for seasoned riders. • Maintenance intervals can be demanding, requiring frequent oil changes and valve adjustments to ensure reliability. • The carburetor can be finicky and require occasional tuning, especially with changes in altitude or temperature. • Finding parts can be challenging and expensive due to the bike's age and relative rarity.With 55 HP, requires full Class A license. Riders must be 24+ or have 2 years A2 experience (20+).
Estimated average for 625cc class: 35-50 mpg (5.0-7.0 L/100km)
⛽ Tank: 12.00 litres (3.17 US gallons)
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